#xenon fossil

[xenonfossil]

i am showing Creature Creation Station in person in a few weeks and this idea i saw on cohost made me so excited i ordered some empty cases and spent an evening designing the case art!! heehee

i really wanna put in little extras tucked in there! a sticker for sure, and i wanna see if i can make small cellphone charms to go on the loops of the usb sticks i got since i have some lobster clasp straps lying around

(i used the wii case template from here and the cassette template from here)

[soulguibo]

Found this super cute creature creator! It's like a furry version of the mii maker :D

It's SUPER optimizable! Just about everything on there is adjustable !!! :)

heres mine as well as some expressions!

credit to Xenon Fossil on Cohost!! <3

[wholesomepostarchive]

trick or treat :D

have a treat! a favorite website of mine!

https://xenonfossil.itch.io/creature-creation-station

[silverslipstream]

Happy Worldbuilding Wednesday! Are there any parts of your worldbuilding you've put a lot of thought too but aren't the focus of your story? Bless us with some.

Hey Sgt. Narwhal, thank you for the ask!

Oh ho ho boy, there's a lot I could use in this answer. One thing I'll stick to (to keep this relatively short) are the spacecraft engines used in-universe. Unlike current-day rockets in our world, which use chemical propellants like liquid oxygen, hydrogen, kerosene, ammonium sulfate, hydrazine and many others. While many smaller and older ships (like the characters' main ship, the Dowager Caroline) still use these fuels, the majority of modern-day large spacecraft use fusion-powered engines, mostly those using Helium-3/deuterium reactions. Helium-3 is found on Earth in extremely small concentrations (about 7 parts per trillion), but is up to 2,500 times more plentiful in lunar regolith, with concentrations as high as 50-60 parts per billion in permanently shadowed craters. It's still not very easy to find (on average, it'd take 15 tons of mined regolith to extract a gram of He3). It's incredibly efficient though - using some (admittedly quite clumsy) back-of-the napkin estimations, I figure that around 18-20 tons of helium-3 would be enough to power the entirety of the United States for a year. As you can imagine, that's a lot of power in a comparatively miniscule amount of reaction material. As a result, it's used extensively to meet Earth's power generation needs, along with solar power (both space-based and ground-based), wind farms, hydropower and the last deposits of fossil fuels. Helium-3/deuterium fusion is also much less wasteful and is an aneutronic reaction, meaning that neutron radiation (which is very harmful and difficult to shield against) is practically non-existent. This is ideal for space travel, as helium-3/deuterium fusion is far more efficient than deuterium-tritium, and doesn't require heavy radiation shielding that compromises the size and abilities of spacecraft. While the technology is relatively new in White Sky, having only been around since the early/mid-2070s, it's already seeing widespread use. The Konstantin Tsiolkovsky, ELTO's purpose-built spacecraft for a manned mission to Saturn, uses a prototype magnetized target fusion reactor. This uses electromagnetic acceleration system to confine the fusion fuel, increasing density and temperature for higher thrust and efficiency.

An important measurement in this case is specific impulse (Isp). Isp is the measure of how efficiently a reaction mass engine (like a jet or rocket) uses fuel, like miles per gallon is used for cars. Isp is measured in the number of seconds it takes for the propellant and engine mass to accelerate itself at one Earth-gravity, or 1g. Different fuel sources and engines have different levels of Isp: the AJ10-190 used on the Space Shuttle's orbital Maneuvering System and the European Service Module in NASA's current Orion spacecraft is propelled by Aerozine-50 (a mix of hydrazine propellants) for an Isp of 316 seconds in vacuum. The Rocketdyne RS-25s, used as the main engines for the Space Shuttle and Space Launch System (SLS) use hydrogen and liquid oxygen, with an Isp of 453s in vacuum. Solid-core nuclear engine concepts like NASA's NERVA have much higher Isps of roughly ~850 to 1000s, while xenon-based ion thrusters like NASA's NEXT-C engine used on the recent DART asteroid redirect space probe have much greater efficiencies of ~4,000s, with the European DS4G accelerated ion grid engine estimated to reach 21,000s. The prototype fusion engine on board the Tsiolkovsky has a specific impulse of roughly 65-70,000 seconds. This allows it to accelerate for periods of several days/weeks depending on fuel load, eventually having enough speed to reach Saturn in roughly nine months, compared to around eight years for a traditional chemical rocket.

Of course, mining Helium-3 isn't all sunshine and rainbows and high-tech utopian dreams. It's still an extremely arduous process, undergone in an extremely hostile environment which can prove quickly fatal after the slightest of mistakes. It's also a limited resource - current estimates predict that the entirety of the lunar surface contains 1-1.5 million tons of He3. Experts predict this source will run out around 3500 to 4000 AD - considerably longer than fossil fuels and still many centuries into the future, but still finite.

(Author's note: apologies for the amount of infodumping and scientific jargon - I tried to keep my explanations as simple as possible while showcasing that the technology in White Sky is based on real-world physics, spaceflight projections and technological possibilities. Hope you enjoyed!)

[acorn-rice]

love my little creature

make ur own here ^^^

[rohanlal11]

Developing Future With Solar Energy

Solar energy generation and utilization for mankind has been making headlines since the early 1930s. However, it indeed took more than 60 years to supply electricity to millions of human beings from renewable energy such as Solar. The world has shown its readiness to accelerate the transition towards global energy decarbonisation. Today human efforts are towards judicious utilization of finite fossil fuel and reduction in carbon footprints.

Solar energy can be considered as a never depleting source of clean energy for humans since the Sun still has more than 5 billion years of life according to NASA. Every 24 hours, enough sunlight touches the Earth to provide the energy for the entire planet for 24 years. As per some publications, "the Earth’s surface receives 120,000 Terawatts of solar irradiation, which represents 20,000 times more power than the whole planet needs.” This energy is renewable, inexhaustible & non-polluting. It is versatile and can be applied for small scale areas isolated from network to large scale energy generation. This gives the world the perfect reason to switch to Solar Energy!

The Government of India has set the target of installing 100 GW of solar energy by 2022, which has led to an unanticipated surge in solar power generation. This has further led to an enormous demand for solar panels, solar inverters, batteries, performance monitoring systems and not to mention, various special kinds of wires and cables suitable for their connections. These cables constitute a very small percentage of the total project cost, however, the type and quality of the cables selected for the solar application may directly impact the power output performance and system safety.

Solar cables popularly known as DC cables, have to withstand harsh environmental conditions and are generally placed at an isolated location. They have to survive constant high temperatures, UV radiations, ozone, mineral oils, acid, alkali, ammonia and fire risks with a life expectancy of 25 years. The quality, safety and profitability of a solar plant or project depends on the workmanship and efficiency of the components used. DC cables are the lifelines of Solar Power plants. Hence choosing an ordinary cable for such application may lead to high maintenance cost, reduced efficiency and compromise in fire safety.

In a rush to grab huge business opportunities, market shelves are filled with non-standard DC cables. Cables with look-alike constructions may absolutely be price competitive but cannot meet the required technical parameters and the adverse environmental condition. When the integrity of the whole project depends on these cables, it is meaningless to have price-oriented quality benchmarks for DC solar cables. We need to ensure the correct cable with the updated applicable standards and requirements.

RR KABEL offers Solar cable as per EN 50618 standard, meeting the most adverse environmental conditions. This cable is offered with Low Smoke and Halogen Free insulation and sheath materials. Electrolytic Tin coated copper conductor further adds to the non-corrosive properties and better solderability.

Benefits:

 Mineral Oil Resistance according to DIN VDE 0473-811-2-1 & DIN EN 60811-2-1 Acid and Alkaline resistance according to EN 60811-2-1 Weather Resistance: Ozone resistance according to DIN EN 50396 test Type B, HD 22.2 test Type B UV - resistance according to UL 1581 Ammonia Resistance Xenon - Test, ISO 4892 - 2 (Method A) and HD 506/A1-2.4.20 Absorption of water (gravimetric) according to DIN VDE 0473-811-1-3, DIN EN 60811 - 13 Flame propagation resistant. Single cable according to DIN VDE 0482 Part 332 - 1 - 2, DIN EN 60332 - 1 - 2 Multiple cable according to DIN VDE 0482 Part 266 - 2 - 5, DIN EN 50305 - 9Low smoke emission according to DIN VDE 0482 Part 268 - 2 Light transmittance > 70% according to DIN EN 50268-2 Corrosivity resistant according to DIN EN 50267-2-2

The day is not far, when most of our energy requirements shall be met by such renewable sources. To develop a clean and green future, today the best cable solutions are available, providing longevity to the solar projects and reinforcing our dreams of sustainable development.

So, let's go green with the best Solar Cable!

[snehak-posts]

Developing Future With Solar Energy | RR Kabel

Solar energy generation and utilization for mankind has been making headlines since the early 1930s. However, it indeed took more than 60 years to supply electricity to millions of human beings from renewable energy such as Solar. The world has shown its readiness to accelerate the transition towards global energy decarbonisation. Today human efforts are towards judicious utilization of finite fossil fuel and reduction in carbon footprints.

Solar energy can be considered as a never depleting source of clean energy for humans since the Sun still has more than 5 billion years of life according to NASA. Every 24 hours, enough sunlight touches the Earth to provide the energy for the entire planet for 24 years. As per some publications, “the Earth’s surface receives 120,000 Terawatts of solar irradiation, which represents 20,000 times more power than the whole planet needs.” This energy is renewable, inexhaustible & non-polluting. It is versatile and can be applied for small scale areas isolated from network to large scale energy generation. This gives the world the perfect reason to switch to Solar Energy!

The Government of India has set the target of installing 100 GW of solar energy by 2022, which has led to an unanticipated surge in solar power generation. This has further led to an enormous demand for solar panels, solar inverters, batteries, performance monitoring systems and not to mention, various special kinds of wires and cables suitable for their connections. These cables constitute a very small percentage of the total project cost, however, the type and quality of the cables selected for the solar application may directly impact the power output performance and system safety.

Solar cables popularly known as DC cables, have to withstand harsh environmental conditions and are generally placed at an isolated location. They have to survive constant high temperatures, UV radiations, ozone, mineral oils, acid, alkali, ammonia and fire risks with a life expectancy of 25 years. The quality, safety and profitability of a solar plant or project depends on the workmanship and efficiency of the components used. DC cables are the lifelines of Solar Power plants. Hence choosing an ordinary cable for such application may lead to high maintenance cost, reduced efficiency and compromise in fire safety.

In a rush to grab huge business opportunities, market shelves are filled with non-standard DC cables. Cables with look-alike constructions may absolutely be price competitive but cannot meet the required technical parameters and the adverse environmental condition. When the integrity of the whole project depends on these cables, it is meaningless to have price-oriented quality benchmarks for DC solar cables. We need to ensure the correct cable with the updated applicable standards and requirements.

RR KABEL offers Solar cable as per EN 50618 standard, meeting the most adverse environmental conditions. This cable is offered with Low Smoke and Halogen Free insulation and sheath materials. Electrolytic Tin coated copper conductor further adds to the non-corrosive properties and better solderability.

Benefits:

· Mineral Oil Resistance according to DIN VDE 0473–811–2–1 & DIN EN 60811–2–1

· Acid and Alkaline resistance according to EN 60811–2–1

· Weather Resistance: Ozone resistance according to DIN EN 50396 test Type B, HD 22.2 test Type B UV — resistance according to UL 1581

· Ammonia Resistance

· Xenon — Test, ISO 4892–2 (Method A) and HD 506/A1–2.4.20

· Absorption of water (gravimetric) according to DIN VDE 0473–811–1–3, DIN EN 60811–1–3

· Flame propagation resistant:

Single cable according to DIN VDE 0482 Part 332–1–2, DIN EN 60332–1–2 Multiple cable according to DIN VDE 0482 Part 266–2–5, DIN EN 50305–9

· Low smoke emission according to DIN VDE 0482 Part 268–2

· Light transmittance > 70% according to DIN EN 50268–2

· Corrosivity resistant according to DIN EN 50267–2–2

· Toxicity according to DIN EN 50305, ITC — index < 3

The day is not far, when most of our energy requirements shall be met by such renewable sources. To develop a clean and green future, today the best cable solutions are available, providing longevity to the solar projects and reinforcing our dreams of sustainable development.

So, let’s go green with the best Solar Cable!

[xenonfossil]

finished my write-up/tutorial for making a game cassette! i've given them the name zette, for zine in a cassette. 📼 there's links to freely download the templates i made for them in the blog post!

please let me know if you end up making one, i wanna seeeee :D 💜

[spaceexp]

The xenon connection

ESA - Rosetta Mission patch. 08 June 2017 The challenging detection, by ESA's Rosetta mission, of several isotopes of the noble gas xenon at Comet 67P/Churyumov-Gerasimenko has established the first quantitative link between comets and the atmosphere of Earth. The blend of xenon found at the comet closely resembles U-xenon, the primordial mixture that scientists believe was brought to Earth during the early stages of Solar System formation. These measurements suggest that comets contributed about one fifth the amount of xenon in Earth's ancient atmosphere.

Image above: Comet 67P/Churyumov-Gerasimenko on 15 May 2016. Image Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0. Xenon – a colourless, odourless gas which makes up less than one billionth of the volume of Earth's atmosphere – might hold the key to answer a long-standing question about comets: did they contribute to the delivery of material to our planet when the Solar System was taking shape, some 4.6 billion years ago? And if so, by how much? The noble gas xenon is formed in a variety of stellar processes, from the late phases of low- and intermediate-mass stars to supernova explosions and even neutron star mergers. Each of these phenomena gives rise to different isotopes of the element [1]. As a noble gas, xenon does not interact with other chemical species, and is therefore an important tracer of the material from which the Sun and planets originated, which in turns derives from earlier generations of stars. "Xenon is the heaviest stable noble gas and perhaps the most important because of its many isotopes that originate in different stellar processes: each one provides an additional piece of information about our cosmic origins," says Bernard Marty from CRPG-CNRS and Université de Lorraine, France. Bernard is the lead author of a paper reporting Rosetta's discovery of xenon at Comet 67P/C-G, which is published today in Science [2]. It is because of this special 'fingerprint' that scientists have been using xenon to investigate the composition of the early Solar System, which provides important clues to constrain its formation. Over the past decades, they sampled the relative abundances of its various isotopes at different locations: in the atmosphere of Earth and Mars, in meteorites deriving from asteroids, at Jupiter, and in the solar wind – the flow of charged particles streaming from the Sun.

Graphic above: Xenon across the Solar System. Graphic Credits: Data from B. Marty et al., 2017 and references therein. The blend of xenon present in the atmosphere of our planet contains a higher abundance of heavier isotopes with respect to the lighter ones; however, this is a result of lighter elements escaping more easily from Earth's gravitational pull and being lost to space in greater amounts. By correcting the atmospheric composition of xenon for this runaway effect, scientists in the 1970s calculated the composition of the primordial mixture of this noble gas, known as U-xenon, that was once present on Earth. This U-xenon contained a similar mix of light isotopes to that of asteroids and the solar wind, but included significantly smaller amounts of the heavier isotopes. "For these reasons, we have long suspected that xenon in the early atmosphere of Earth could have a different origin from the average blend of this noble gas found in the Solar System," says Bernard. One of the explanations is that Solar System xenon derives directly from the protosolar cloud, a mass of gas and dust that gave rise to the Sun and planets, while the xenon found in the Earth's atmosphere was delivered at a later stage by comets, which in turn might have formed from a different mix of material. With ESA's Rosetta mission visiting Comet 67P/Churyumov-Gerasimenko, an icy fossil of the early Solar System, scientists could finally gather the long-sought data to test this hypothesis. "Searching for xenon at the comet was one of the most crucial and challenging measurements we performed with Rosetta," says Kathrin Altwegg from the University of Bern, Switzerland, principal investigator of ROSINA, the Rosetta Orbiter Spectrometer for Ion and Neutral Analysis, which was used for this study.

Image above: Artist's impression of the protosolar cloud. Image Credits: ESA – CC BY-SA 3.0 IGO. Xenon is very diffuse in the comet's thin atmosphere, so the navigation team had to fly Rosetta very close – 5 km to 8 km from the surface of the nucleus – for a period of three weeks so that ROSINA could obtain a significant detection of all the relevant isotopes. Flying so close to the comet was extremely challenging because of the large amount of dust that was lifting off the surface at the time, which could confuse the star trackers that were used to orient the spacecraft. Eventually, the Rosetta team decided to perform this operation in the second half of May 2016. This period was chosen as a compromise so that enough time would have passed after the comet's perihelion, in August 2015, for the dust activity to be less intense, but not too much for the atmosphere to be excessively thin and the presence of xenon hard to detect. As a result of the observations, ROSINA identified seven isotopes of xenon, as well as several isotopes of another noble gas, krypton; these brought to three the inventory of noble gases found at Rosetta's comet, following the discovery of argon from measurements performed in late 2014. "These measurements required a long stretch of dedicated time solely for ROSINA, and it would have been very disappointing if we hadn't detected xenon at Comet 67P/C-G, so I'm really glad that we succeeded in detecting so many isotopes," adds Kathrin. Further analysis of the data revealed that the blend of xenon at Comet 67P/C-G, which contains larger amounts of light isotopes than heavy ones, is quite different from the average mixture found in the Solar System. A comparison with the on-board calibration sample confirmed that the xenon detected at the comet is also different from the current mix in the Earth's atmosphere. By contrast, the composition of xenon detected at the comet seems to be closer to the composition that scientists think was present in the early atmosphere of Earth. "This is a very exciting result because it is the first discovery of a candidate for the hypothesised U-xenon," explains Bernard. "There are some discrepancies between the two compositions, which indicate that the primordial xenon delivered to our planet could derive from a combination of impacting comets and asteroids." In particular, Bernard and his colleagues were able to establish the first quantitative link between comets and our planet's gaseous shroud: based on the Rosetta measurements at Comet 67P/C-G, 22 percent of the xenon once present in Earth's atmosphere could originate from comets – the rest being delivered by asteroids.

Graphic above: A link between xenon at Rosetta's comet and on Earth. Image Credits: Data from B. Marty et al., 2017 and references therein. This result is not in contradiction with the isotopic measurements of water at Rosetta's comet, which were significantly different to that found on Earth. In fact, given the trace amounts of xenon in Earth's atmosphere and the much larger amount of water in the oceans, comets could have contributed to atmospheric xenon without having a significant impact on the composition of water in the oceans. The contribution inferred from the xenon measurements, instead, agrees with the possibility that comets have been significant carriers of pre-biotic material – such as phosphorus and the amino acid glycine, which were also detected by Rosetta at the comet – that was crucial to the emergence of life on Earth. Finally, the difference between the blend of xenon found at the comet – which was incorporated in the nucleus at the time of its formation – and the xenon observed across the Solar System indicates that the protosolar cloud from which the Sun, planets, and small bodies were born was a rather inhomogeneous place in terms of its chemical composition. "This conclusion is in accord with previous measurements performed by Rosetta, including the unexpected detections of molecular oxygen (O2)) and di-sulphur (S2), and the high deuterium-to-hydrogen ratio observed in the comet water," adds Kathrin. Additional evidence for the inhomogeneous nature of the protosolar cloud came also from anther study based on ROSINA observations, published in May in Astronomy & Astrophysics, which revealed that the mixture of silicon isotopes seen at the comet is different from what is measured elsewhere in the Solar System.

Animation above: Rosetta's big day in the Sun. 13 August 2015. ESA's Rosetta approaching perihelion of Comet 67P/Churyumov–Gerasimenko. Animation Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0. "As we anticipated last year, now that mission operations are over, the teams can focus on the science," says Matt Taylor, Rosetta Project Scientist at ESA. "The detailed analysis performed in this work, based on specially designed operations, addresses one of the mission's key scientific goals: to find quantitative clues linking back to the formation and early evolution of our planet and Solar System." Notes: [1] The lightest isotopes of xenon (124Xe and 126Xe) are produced during supernova explosions; intermediate-mass isotopes (127Xe, 128Xe, 129Xe, 130Xe, 131Xe and 132Xe) are produced during the Asymptotic Giant Branch phase of evolved low- and intermediate-mass stars; the heaviest isotopes (134Xe and 136Xe) are produced during the merger of neutron stars. [2] The discovery of xenon by Rosetta at Comet 67P/Churyumov-Gerasimenko was announced during a Royal Society meeting in London, UK, and on the ESA Rosetta blog in June 2016, shortly after the scientists had made the detection. This is the first peer-reviewed study based on those measurements. Related links: For more information about Rosetta mission, visit: http://www.esa.int/Our_Activities/Space_Science/Rosetta Rosetta overview: http://www.esa.int/Our_Activities/Space_Science/Rosetta_overview Rosetta in depth: http://sci.esa.int/rosetta Images (mentioned), Graphics (mentioned), Text, Credits: ESA/Matt Taylor/CRPG-CNRS, Université de Lorraine/Bernard Marty/Universität Bern/Kathrin Altwegg. Greetings, Orbiter.ch Full article

[get-knows]

There and back again: Mantle xenon has a story to tell

There and back again: Mantle xenon has a story to tell

[ad_1] Volatiles — such as water, carbon dioxide and the noble gases — come out of the earth’s interior through volcanism and may be injected into the mantle from the atmosphere, a pair of processes called mantle degassing and regassing. The exchange controls the habitability of the planet. This transport could not have begun much before 2.5 billion years ago, according to new research that also…

[presuninoc-blog]

How do scientists use radioactive dating

Dating Fossils However, construction of an isochron does not require information on the original compositions, using merely the present ratios of the parent and daughter isotopes to a standard isotope.  It is not affected by external factors such as , , chemical environment, or presence of a or.  Each parent nuclide spontaneously decays into a daughter nuclide the via an or a.  Carbon-14, though, is continuously created through collisions of neutrons generated by with nitrogen in the and thus remains at a near-constant level on Earth.  Plants absorb C-14 during photosynthesis, so C-14 is incorporated into the cellular structure of plants.  The first argument was completely undermined after taking into account the amount of heat generated by radioactive decay.  Isotopic systems that have been exploited for radiometric dating have half-lives ranging from only about 10 years e.

Geologic Age Dating Explained Decay of a radioactive isotope.  The iodine-xenon chronometer is an isochron technique.  Relative dating is used to determine a fossils approximate age by comparing it to similar rocks and fossils of known ages.  This uses radioactive minerals that occur in rocks and fossils almost like a geological clock.  Each radioactive isotope works best for particular applications.

Nuclear Chemistry: Half So, often layers of volcanic rocks above and below the layers containing fossils can be dated to provide a date range for the fossil containing rocks.  Radiometric dating lab worksheet for radioactive substances, they can't measure age of the latest science behind carbon.  These are tiny zircon, the age dating have combined stratigraphy and the.  The technique has potential applications for detailing the thermal history of a deposit.  Lord Kelvin and his allies used three kinds of argument.  Carbon-14, or radiocarbon, is a naturally occurring radioactive isotope that forms when cosmic rays in the upper atmosphere strike nitrogen molecules, which then oxidize to become carbon dioxide.  One outstanding feature of this drama is the role played by those who themselves were not, or not exclusively, geologists.

USGS Geology and Geophysics Citing this material Please include a link to this page if you have found this material useful for research or writing a related article.  The final decay product, lead-208 208Pb , is stable and can no longer undergo spontaneous radioactive decay.  And the oceans have long since approached something close to a steady state, with chemical sediments removing dissolved minerals as fast as they arrive.  In the 1660s Nicolas Steno formulated our modern concepts of deposition of horizontal strata.  For nonliving substances, scientists use other isotopes, such as potassium-40.  In a way this field, called geochronology, is some of the purest detective work earth scientists do.  As long as an organism is alive, the amount of C-14 in its cellular structure remains constant.

Radioactive Dating Radiometric Dating and the Geological Time Scale: Circular Reasoning or Reliable Tools? The atoms in some chemical elements have different forms, called isotopes.  Generally a shorter half-life leads to a higher time resolution at the expense of timescale.  All radioactive dating is based on the fact that a radioactive substance, through its characteristic disintegration, eventually transmutes into a stable nuclide.  The trapped charge accumulates over time at a rate determined by the amount of background radiation at the location where the sample was buried.  It is a drama consisting of a prologue and three acts, complex characters, and no clear heroes or villains.

What do geologist use radioactive dating for Published earlier this year, the collection draws articles from the archives of Scientific American.  In 1907, the American chemist Bertram Boltwood demonstrated that he could determine the age of a rock containing uranium-238 and thereby proved to the scientific community that radioactive dating was a reliable method.  Isotopic ratios between stable isotopes both on the earth and in meteorites are coming under increasingly close scrutiny, to see what they can tell us about the ultimate sources of the very atoms that make up our planet.  This scheme has been refined to the point that the error margin in dates of rocks can be as low as less than two million years in two-and-a-half billion years.  Follow Life's Little Mysteries on Twitter.  Carbon-14, the radioactive isotope of carbon used in carbon dating has a half-life of 5730 years, so it decays too fast.  And we should resist the temptation to blame them for their resistance.

How do scientists use radiometric dating to determine the age of the earth This predictability allows the relative abundances of related nuclides to be used as a to measure the time from the incorporation of the original nuclides into a material to the present.  The discovery of the radioactive properties of in 1896 by Henri Becquerel subsequently revolutionized the way scientists measured the age of artifacts and supported the theory that the earth was considerably older than what some scientists believed.  Using geochemical data: evaluation, presentation, interpretation.  Carbon-14 dating to determine the relationship between radioactive dating lab scientists use carbon-based substances, scientists were lead to understand how stuff works.  In Roth, Etienne; Poty, Bernard.

Ch. 14 Biology Test Questions and Study Guide A chart of isotope pairs can we scientists use different methods.  But if you have a large enough sample, a pattern begins to emerge.  Roman poet Lucretius, intellectual heir to the Greek atomists, believed its formation must have been relatively recent, given that there were no records going back beyond the Trojan War.  Using a technique used by hands on the what when performing.  For most radioactive nuclides, the half-life depends solely on nuclear properties and is essentially a constant.  Plants acquire it through , and animals acquire it from consumption of plants and other animals.

USGS Geology and Geophysics In hindsight, both theories were deeply misguided, for similar reasons.  There is radiometric dating is left relative age of rocks or radioactive substances, scientist determined that radioactive isotopes and distribution visual and.  The first of these referred to the rate of heat loss from the earth and the length of time it would have taken to form its solid crust.  Here's how do we find the absolute age of how do we know about earth scientists use radiometric dating is warmer? He was one of the dominant physicists of his time, the Age of Steam.  If we sketched in the age of rocks and.

Dating Fossils Are there repairs or cracks in the sidewalk that came after the sidewalk was built? It then takes the same amount of time for half the remaining radioactive atoms to decay, and the same amount of time for half of those remaining radioactive atoms to decay, and so on.  Dating methods based on extinct radionuclides can also be calibrated with the U-Pb method to give absolute ages.  Archaeologists routinely use radioactive elements radiometric dating to determine geologic time.  Annual reports cup impact newsletters early childhood measurement tool reviews back to.  If a radioactive isotope is said to have a half-life of 5,000 years that means after 5,000 years exactly half of it will have decayed from the parent isotope into the daughter isotopes.  We, of course, know the final outcome, but we should not let that influence our appreciation of the story as it unfolds.

[xenonfossil]

version 0.3 of my character creator is live! link in source to wishlist on steam or play the browser version on itch for free~

🎶 music is by crashtroid!! 🎶

new stuff: 🐈 face & body markings!! 🐈 a ton of new body parts and sliders! 🐈 a lobby where you can watch your lads run around! 🐈 down with flat ui! it has now been  b e v e l e d

enjoy, and dont forget to show me your creations!!!!

[xenonfossil]

just released version 0.2 of my lil creature creator in itch :D link is in the source

 you can play it in browser now, and edit face features!! i’m very proud of it so far and am excited to keep working on it

[xenonfossil]

some low poly pixel crops i made for an Asset Pack Jam! they’re free to use for whatever, but if you do PLEASE show me what you use them for! :D

link in source!

[xenonfossil]

y’all ready for version 0.3???? :3

[xenonfossil]

randomize that face babeyyyyyy