#cg kepler

[hiyyhs]

[10:34 PM] cg!xiaoting × little!reader :: warnings - no dialogue, age regression (non-sexual), fluffy, drabble, non idol au, not proofread navigation

curled up on the couch, you let out a dragged out yawn as you stretched your arms. your eyelids felt heavy, mind fuzzy, yet you felt cold. cold air lightly brushed against you, making you shiver lightly. hypothetically, you could grab the blanket on the floor, but it was so far away. not really.

unknowingly, while you tried to force yourself into sleep, your lovely mama, xiaoting, came into the room, seeing you attempt to cover your bare skin with your arms. she smiled lightly at this, that her lazy baby couldn't get up for not even 7 seconds to get their blanket.

xiaoting picked the soft blanket and draped it over your small, curled up form. the sudden contact made you flinch, but quickly relax back into the couch when you realized it was just your blanket.

you looked up, reaching a hand out to make grabby hands at your caregiver. xiaoting laid down behind you on the couch, spooning you and playing with your hair. this quickly lulled you to sleep, falling off to the dreamland you'd missed.

[thegodshavehorns]

hey guys what are your favorite planets?

AA: there will be a l0st planet, flung free fr0m its star, spinning f0rever in the endless star-spangled night. it will have 0nce held a thriving civilizati0n, which will die 0ut with a tender sl0wness. its atm0sphere and 0ceans will freeze, until 0nly its well-insulated c0re h0lds any heat. there will be pe0ple there, still, living 0ff that heat deep in the crust, praying. it will be beautiful.

AT: i SPEND A LOT OF TIME ON THIS GREAT PLANET OUT IN THE… uH, i THINK YOU HUMANS DON’T HAVE A NAME FOR IT… iT’S SEVERAL TENS OF MILLIONS OF LIGHT YEARS AWAY, uH, aNYWAY, iT’S NICE, i LIKE CAMPING OUT UNDER THE MYCELIAL TREES AND LISTENING TO THE LIZARDS SING ME TO SLEEP AS THE SUN RISES, tHEN AT NIGHT I ROAST SOME JUICY WORMS OVER THE FIRE AND JUST WATCH THE LIGHTS OF THE AURORA ORIENTALIS, sOMETIMES I INVITE A FRIEND FROM AMONGST THE LOCALS AND WE TELL STORIES AND FLY AROUND, iT’S NICE,

TA: anywhere wiith wii-fii ii2 good enough.

CG: I HATE THEM ALL EQUALLY. I’D SPEND ALL MY TIME IN THE INTERGALACTIC VOID, BUT I HATE OUTER SPACE JUST AS MUCH.

AC: :33 would you believe i can’t remember the planet’s name? i had a lot of fun there, though! the people there had this fascinating romance system where each purrson was flushed with two other people, who were also flushed with another shared purrson, making a square. And they were pale on the diagonal. i introduced the concept of blackrom to them, and it was purrfect chaos. >:33

GA: It Is Impossible To Choose Just One. Every Planet Is Unique, Precious, And Delicate. Like A Shard Of Crystalized Precipitate.

GC: M4RS.

AG: It’s called “Areani”, and it’s got a diamond in its center that’s 8igger than two Earths! It’s mine, of course. Won it in a game of craps. ::::)

CT: ▉▉▉▉▉.

TC: AnY sPoT tO cRaSh Is GoOd, InSeCtIsIbLiNg. I bRiNg My FaVoRiTe PlAcE wItH mE. :o)

CA: planets are planets, and people are people. all places tend to blur together ovver time. that’s just as true for the others, too, though they don’t wwant to admit it.

CC: You probably t)(ink I'd say Kepler 195-4, or some ot)(er planet wit)( only oceans, but my favorite was actually K2-219-5 because it )(ad so many islands! Islands are definitely t)(e best. I liked it so muc)( I actually settled t)(ere for a w)(ile, before we all came to -Eart)(. Too bad it's gone now.

[oliviabutsmart]

Physics "Friday" #9 [OPINION]: Is Fahrenheit the better temperature scale?

So as the title suggests, this post is a lot less facts and logic, and a lot more opinionated. It is still physics-y I just believe it's an interesting way to delve into a subject by turning it into an opinionated peice.

Preamble: A summary of Metric vs. Imperial arguments

Education level: Primary (Y3/4)

Topic: Measuring Systems (Metrology)

Now before you throw your hands up at the title and your silly little internet brain is like "this silly impericuck is fahrenpilled!" ... I'm an astronomy student living in Australia - I use SI units (and other unit systems) on the daily.

Though ... it is pretty notorious in astronomy to use like 17 different unit systems. Here's a list of examples:

My beloved SI units

CGS Units

Whatever the fuck a Jansky is

Don't even start with natural units I can't live without big G

"Ampere in CGS units is g1/2 cm3/2 s−2"

Solar Luminosity/Mass of Sun

Angstroms (like please can we just use nanometers?)

How many Jupiters or Earths fit into this cloud of gas?

The vomit of parallax units i.e. AU, pc, Mpc, arcseconds, radians

Steradians (Solid angles can be finicky)

Logarithms, logarithms everywhere!

Hubble's constant being in km/s/Mpc but then having to turn that into Hz or per year - like can someone please acknowledged how cursed this is?

When you do Kepler's 3rd law on Mercury and realise it doesn't work (because you forgot Einstein existed) ... so no units end up working

ADUs and/or whatever you get when you deal with telescope outputs

And as an Australian, I use SI units very regularly. Only measurements of human height and cooking weights are really imperial. And I can express all of them in metric units.

Now generally, the Metric (or SI) units are better than the imperial (or USC) units. The main points in favour of SI are:

(Almost) Everybody uses it

It's basically universal in science (see exceptions above)

It fits well with our base 10 counting system, easy scaling (e.g. 1 kg = 1 000 g = 1 000 000 mg)

It's directly pinned to many natural constants and unchanging laws

Different units interact with eachother much better

Now, generally, the main arguments for imperial units involve a bunch of patriots™ screaming about how "THIS IS THE CoUNTRY OF FREEDOM AND GOD!! AND I AIN'T USING NO CHINESE UNITS!!!1!".

That, or how metrification is hard. Which, well, metrification can occur over the course of decades, literally teaching your kids metric helps the country adjust to a metric system.

The best arguments I've found for imperial units is as follows:

Numbers like 6, 12, 60 etc. - i.e. units based on highly composite numbers - are very easily divisible by 2, 3, and 4

Units like feet, inches, pounds, stone, etc. are of a much more human-friendly scale. Because these units are based on bodily proportions or common objects

Generally, the arguments for metric vastly outweigh the arguments for imperial. And the main reason why is that the two arguments for imperial conflict with eachother. You cannot easily subdivide your units neatly and have human units.

For example, the Roman mile is a unit that measures the usual amount of distance a footsoldier can cover before needing a short stop. An acre is the amount of land that a manual-labour farmer can cover in a day's work. An inch is about the size of your thumb.

The problem is that all three of these units, based on length, are completely off kilter. 1 acre = 43,650 square feet, 1 Roman mile = 58260 in, etc.

The only cases where I would say the human-ness and divisibility of units actually becomes a stronger argument than decimalised units are, time and temperature.

Time is obvious. 1 hour = 60 minutes = 3600 seconds. It's nice, clean and simple. And an hour or half-hour is a very human unit, the same as a second or a minute. We often operate on hour and minute schedules, and that's not just because of capitalism. 30 minutes just appears to be the amount of time we like to work before taking a short rest.

Temperature is a bit more nebulous however ...

Where (I think) Celsius fails

Of course, celsius is an understandable scale. 0 C = Water Freezes, 100 C = water boils. Pinning your scale on water makes life easy for you as you know what the bounds are.

The problem is that there are temperatures that exist outside of the 0-100 scale. And this kinda breaks the neat decimalisation of a scale.

A cold winter's day in Tasmania could drop into the negatives. And just because your in the negatives doesn't mean ocean water or rain will freeze. Temperatures below 0 C doesn't guarantee snowfall.

Similarly, say you are in a desert during the day. The temperature can get as high as 50 C - it's reasonable to say that you're unlikely to see temperatures above 50 C outside of your oven or kettle.

Do you normally see temperatures between 70 - 90 C? Unless if you're pasteurising milk, distilling alcohol, or doing chemistry, you are not going to encounter these temperatures. And do you really need your temperature numbers to be below 100 to do chemistry?

This is the downside of Celsius. Because temperature is a scale, and operates differently to other units, it doesn't really matter where you set the zero point. A boiling point of ethanol at "78" is no better than one at "173".

Celsius also doesn't account for temperatures that are very well below the freezing point of water, temperatures which are very common to experience.

So is Fahrenheit Better?

Fahrenheit solves this problem, partially. It's a more human friendly scale. 0 F is a very very cold day whereas 100 F is a very very hot day. Things beyond both numbers are relegated to the scientists, chefs, and extremophiles of the world.

If we were to completely remove all requirements of not pissing off a bunch of people, we could even create our own temperature scale to make things even better: 0 X = -50 C and 100 X = 50 C.

Even better because now the 0 and 100 of this scale becomes the absolute limit of what we could normally experience on earth, the hottest desert and the coldest tundra. It even comes with the benefit that 50 X = the freezing point of water and 150 X = the boiling point of water - it preserves our common "anchors" of the phases of water.

The problem is that there's a second hidden benefit of Fahrenheit: it's specificity. What do I mean by that?

Well, for every 1 C increase in temperature, the Fahrenheit scale increases by 1.8 F. This means that a temperature of 20 C could mean 68 F or 69 F.

For a lot of normal/casual processes, the Celsius scale may require us get past the decimal point, to express minor changes in temperature, whereas Fahrenheit would not.

For chemistry and physics, our significant figure requirements immediately become extra precise. 58.8 F is a more accurate measurement than 14.9 C, without requiring any more decimal places.

You may say "well why not we use a deci-Celsius scale where 1000 dC = boiling point of water". The issue is that too much precision may be putting it over the top. We don't measure the size of cities in centimetres.

But then what about Kelvin

Of course, the main SI unit for temperature, and the unit physicists and chemists use is the Kelvin. The reason for this is of course:

It is tied to absolute zero by setting it to 0 K

Because of this, we can apply SI order of magnitude quantifiers like milli-Kelvin, kilo-Kelvin, Giga-Kelvin without upsetting the position of our anchor points

It covers and measures cleanly low-K processes

Very hot processes end up having Celsius be approximately equal to Kelvin

It would be difficult to use Fahrenheit because 0 F ~ the freezing point of saltwater.

But let me introduce you to the Rankine Scale. What Kelvin is to Celsius is what Rankine is to Fahrenheit.

Rankine takes all of the benefits of Fahrenheit with it (aside from the human-ness of the scale - but that's not the purpose of the Rankine and Fahrenheit scales), but it also takes the benefits that Kelvin gets.

We can too, have milli-Rankine and Giga-Rankine. And the best part is that it is twice as precise as Fahrenheit.

Even better is that the Rankine Scale is very easily convertible to the Kelvin Scale. 1 K = 1.8 R; 1 K⁻¹ = 0.556 R⁻¹. This means I can very easily re-formulate some fundamental constants:

Boltzmann constant = 1.381 × 10⁻²³ J K⁻¹ = 7.672 × 10⁻²⁴ J R⁻¹

Stefan-Boltzmann c. = 5.67 × 10⁻⁸ W m⁻² K⁻⁴ = 5.40 × 10⁻⁹ W m⁻² R⁻⁴

Ideal gas constant = 8.315 J mol⁻¹ K⁻¹ = 4.619 J mol⁻¹ R⁻¹

Wein's constant = 2.898 × 10⁻³ m K = 5.216 × 10⁻³ m R

Let's hope I converted it correctly, idk my Saturday brain no thinky.

Conclusion: So is it actually better?

Short Answer: In my opinion, yes. But I'm not switching to it.

Of course, when talking about subjective opinions, people can point out the flaws in each others' opinions. I've made it clear that the imperial vs. metric debate very solidly falls to the metric side with only a few exceptions.

Temperature is one of those scales that are more up-to-debate over the usefulness of certain units of choice. Especially because the alternative unit system is still commonly used.

I could've made the same arguments about the meter, and said that we should use a decimalised inch or foot with kilofeet or millifeet. Or invent a completely new unit system that is technically "superior". But that's obviously much more ambitious.

Of course, the likelihood of the global Fahrenheit revolution is almost non-existent, and this is more of a series of "well, technically speaking" arguments that are more for the point of exploring an idea than implementing one.

Regardless I'd like to hear YOUR arguments over why I'm a stupid poo poo head or I'm actually the mother of the next great napoleonic French empire.

I tried to add a bit of colour in this post, specifically with the quotes. I just didn't want it to be a bland wall of text.

Again, feedback that may be unrelated to the specific "you're right/you're wrong" debate like my writing style etc. is also appreciated.

I don't really know what I will do next week. Because technically I was supposed to do philosophy and ethics in science ... but I might not have that time given my university study.

Currently I'm doing three courses in QFT, GR, and Cosmology. And they are all very big and hefty. Thankfully, I think there's a bit of a break period coming as we're now moving to canonical quantisation (which I've found easier than Feynman diagrams), and the measurement of gravitational waves.

Now don't worry that last paragraph is not a flex, it's more an indication that I'm learning a lot of this stuff as I make these posts. More an excuse as to why I might in the future delay posts and such. Like I mentioned the Higgs mechanism in the last post at the same time I was actually learning about the Higgs mechanism.

Anyways, I'm going to go and scarf down some chocolate now.

[suoirallesalta]

A Masterlist of all @suoirallesalta edits!

Every edit is tagged under #suoiredits. edits are sorted acc to their books! enjoy

click here for my art masterlist!

Making Sabina in the Character without using Character’s assets style (edit challenge

Kepler, in only the harness. 

f!Adam

Jen in her dress including the lingerie

Simon Montjoy in Ava’s dress

younger Mitzi Montjoy

AVSP MC as on the cover

💫 Nia Ellarious

the perfect pair? (Nia x MC in an AME crossover)

Goddess of the Sea (Nia x Sunkissed edit)

Nia and Imtura with... moustaches

Nia with TE Alma’s hair and MTFL Ava’s outfit (#suoirandom edit)

Nia as Neisha (new avatar)

Starry Nia (#BladesAW)

Empress of The Shadow (#BladesAW)

Nia as BloodBound women: Kamilah (#BladesAW)

Nia as BloodBound women: Rheya (#BladesAW) 

the pretty young girl next door (#BladesAW)

Quartermaster Nia Ellarious (#BladesAW)

Nia Ellarious as TE MC (#BladesAW)

Nia Ellarious as Shreya (#BladesAW) 

Nia Ellarious in her dress including her lingerie

nia ellarious hot goth girlfriend

The Priestess (GIF edit) (Nia in RC outfit)

Tyril Starfury

cold and broody™ vampire elf (#BladesAW)

cold and broody™ bodyguard (#BladesAW)

cold and broody™ elementalist (#BladesAW)

cold and broody™ orc (#BladesAW)

cold and broody™ designer; feat. f!Tyril (#BladesAW)

f!Tyril (#BladesAW)

Tyril with f!Blaine’s hair (#BladesAW)

rogue-ish Tyril Starfury (with a beard)

The Mage (GIF edit) (in RC outfit)

Scream(o)s from the inside (Kade album cover edit)

Bald-ur (#BladesAW)

Damn those elves and their magicks (Mal - Aerin hairswap)

Modern Rogue-ish Mal Volari (with a beard)

StarCorp

Blades of Lust and Sensuality

Jax Tora and Robin Matsuo (face swap)

Duke Richards in the banana mascot outfit from Platinum.

Charlie Smith

A relaxing day at the waterfall! (edit inspired by Charlie Premium Scene!)

Quartermaster of the Dreadlord (DSAW)

Quartermaster of the Flotillan Pirates (DSAW)

Siren of The Light (DSAW)

Charlie as Atlas, Eli and Shreya from TE (DSAW)

Maggie

Maggie! M-Maggie? (MM and DS Maggie Crossover)

Maggie with HC Hazel’s hair and QB Poppy’s outfit. (#suoirandom request)

Oliver Cochrane

Oliver Cochrane as Luke Hemmings

oliver cock rain (DSAW)

f!Oliver (DSAW)

Distant Sores (Charlie x Edward face swap)

DS MC using BaBu2 sprite (DSAW)

Distant Couture // Hot Shores (DS x HC crossover, DSAW)

Ayna Seth

student!Ayna and professor!Ayna

Ayna as Imogen from ILB

buff ayna

Ayna as Jackie in the Open Heart 3 CG

vampire!Ayna

Ayna Seth

Ayna Seth as a Lovelink Match

Ayna Seth as Robin Tora

aynia ellarious

TA meets TA (Ayna - Aiyana Midthunder crossover)

Blaine Hayes

m!Blaine in f!Blaine’s dress

f!Blaine as m!Blaine

Blaine with PT Raleigh’s Hair and MOTY MC’s outfit (#suoirandom edit)

Blaine Hayes edit inspired by @aestheteasteria’s icon

Tatum Mendoza

John Somerset x Tatum Mendoza crossover

Tatum in Ayna’s dress / Tatum as Ayna

MC

politics reporter and student (FA mc x WT mc)

MC with ATV Pax’s hair and TNA Robin’s outfit (#suoirandom edit)

Ayna x MC

girlfriends

partners

Bodyguard Murphy (lmao)

Murphy Icons <3

I think I got the address to the wrong Murphy

Skye Crandall x Gerard Way

Dark Mage Ajay (choicedits challenge)

Power Duo (Luz x MC)

Bridgette Gardner with TRH Cedric Vescovi’s hair and PM Hayden’s Outfit (#suoirandom edit)

Luz Estrada in her dress including the lingerie

Noah Marshall in the banana outfit (edit request)

Sadie McGraw

Sadie McGraw (in the TNA MC’s Golden Dress)

A bit younger Sadie McGraw

Sadie McGraw (in casual(?) outfit)

Aislinn Tanaka

Aislinn Tanaka in QB Poppy’s outfit and diff black hair

aislinn tanaka hot goth girlfriend

aislinn tanaka hot goth girlfriend 2

aislinn tanaka girlfriend

aislinn tanaka’s v short hair

Gabe and MC as Mal and Nia

Babe Ricci with long hair

The Boys

Ava as Britney from ILITW

IGHT (NB face swap)

MC with TE MC’s hair and BB MC’s outfit (#suoirandom edit)

bryce.. lahela .. and,, uh.. bryce sterling..

Rookie Ramsey

Rookie Varma

Raleigh Carrera

Raleigh Carrera with AME Mackenzie’s hair and VOS Naomi’s outfit (#suoirandom edit)

An exclusive sneak-peek at Raleigh Carrera’s fuck-the-stereotype Vinyls look that has got the fandom in meltdown!

Raleigh Carrera with BOLAS MC’s hair and THM Eris’s outfit. (#suoirandom edit)

A Very Wilshere Christmas! (Album Cover)

The Hottest Couple of the Industry (Avery x MC)

Poppy is just angry Avery

Zoey Wade

“Besties!” (mc and Zoey as Mc and Ava from MTFL)

priestess zoey wade

zoey in floral

zoey in floral (beach-wear edition)

TA Zoey Wade

Zoey Wade as Atlas Ernhardt

Zoey Wade in TE MC’s gala outfit

zoey in the dress she gave to mc in the first chapter

Ina/Ian Kingsley

Ina Kingsley with TF Becca's hair and BB Kamilah's outfit. (edit request)

Ina Kingsley with TNA Sam’s hair and WT MC’s outfit. (#suoirandom edit)

Veronica with TNA Sofia’s hair and ACOR Sabina’s outfit. (#suoirandom edit)

MC with BP Courtney’s hair and QB Poppy’s outfit.

how (ridiculous) mc would look if she actually wore that ligerie under that dress

📰 Robin Tora

Asian Robin as Ava Lawrence from MTFL

Asian Robin as Ava Lawrence from MTFL (#2)

Asian Robin as Ava Lawrence from MTFL (#3)

Robin as Mikasa Ackerman from Attack on Titan

Jax Tora and Robin Matsuo (face swap)

Robin in an oversized baggy shirt

wait, wrong Robin- shit (Sofia TNA edit)

Robin Tora as Robin Tora and Robin Tora as Robin Tora

Robin as Cassian in Witness

Robins at the beach

robin hood

asian f!robin tora as blaine hayes

Flame the Crow & Me : One Boob (TC&TF face swap)

Annia Adairious (TCTF AW)

orc!Val (TCTF AW)

Kenna Rys with NB Katherine’s hair and HSS Principal Rivera’s outfit (#suoirandom edit)

🌙 Atlas Ernhardt

Atlas Ellarious

Atlas, the adventurous elf

Queen of Vampires, Atlas, of Clan Ernhardt

Vampire Queen Atlas (edit #2)

Atlas, the Snow Princess

Atlas, the Moon Princess

Atlas in genderfluid flag colors!

m!Atlas in f!Atlas’s Gala dress

f and m!Atlas swapped

☀️ Eli Solaris Russell (my mc)

Eli’s first (accidental) spell cast!

Eli’s momentous first day at Penderghast

⚙️ Beckett Harrington

“Small dapper Beckett… confirmed.”

Beckett as Connor from Detroit: Become Human

Shreya Mistry

Shreya “Wonder Woman” Mistry

❣️ Pend Pals

“All dressed in black.”

Pend Gals on a night out in matching black outfits (#1)

Pend Gals on a night out in matching black outfits (#2)

Magick Docs (OH crossover)

Pend Pals in Belvoire attire

Pend Gals on a night out after the Amorelia Day Gala (faceapp faceswap edit)

The Elementalists - Across the Dimension (2D art crossover)

💞 Shreya x Atlas

“your eyes, they shine so bright”

“Hey Shreya.. Marry Me”

“Wedding Day!”

💞 Beckett x Eli/MC

Beckett and Eli in a western setting

Eli x Beckett face swap

Eli x Beckett in Robin x Sofia art (lmao)

🌟 Double Trouble (Eli/MC + Atlas)

Hydrobreath (Eli + Atlas)

“my younger twin sister” (double trouble x mtfl edit)

Misc

Blood of the Sun (a spinoff movie poster)

Coolness of metal and water-atts (meme)

Alma with FA Dionne’s hair and D&D MC’s outfit (#suoirandom edit)

Sam Dalton

Sam Dalton as Sam Dalton and Sam Dalton as Sam Dalton

Sam Dalton with BB Serafine’s hair and TCTF Val’s outfit. (#suoirandom edit)

Sofia as Lady Dimitrescu from Resident Evil

the cake on sofia’s skirt works as floral print

John Somerset x Tatum Mendoza crossover

Vampire Harlenay

Flynn o’Malley in fem VOS characters’ hair 

Flynn o’Malley in fem outfits

Anna Koishi

Anna Koishi, at the club, with short pink hair

Anna Koishi with TE Atlas’s hair and PT Avery’s outfit. (#suoirandom edit)

Anna Koishi as Atlas Ernhardt

politics reporter and student (FA mc x WT mc)

Asian f!Dakota with Hispanic f!Dakota’s hair

Daenerys, the mother of dragons (using TRR mc)

TRR mc as Daenerys (edit #2)

the greatest witch of our time (BB mc as Hermione Granger)

me before you (poster edit with TRR Mc and AME Adam)

Aquaman (ft Cassian and Ava)

Wolf Bride wolf in Poppy’s outfit

Imogen Dragons

rip fallen books

The Crew (DSAW)

Wizards of Waverley Place (THOBM edit)

omg a hit tweet (pb meme)

Choicedits Challenges

ACOR Sabina without using her assets

OpH Jackie without using her assets

Harry Potter and Hermione Granger using Choices assets

Priestesses of the Light

Coldplay’s Higher Power album cover using only Choices assets

Asian Wolf Bride MC as TE MC

Lovelink Edits

Nicholas Adley in Pirate Outfit

Jamie Grant in multiple outfits from HERO

[hahnlx]

My Own Private Universe - The Great Attractor

(1999, 5:14', 3D CG animation, loop, rear projection)

In this reconstruction of my New York apartment, the room is divided by a solid Pompeian wall, that keeps a small sun in its gravitational bind. Outside, day turns into night - time-lapsed. At some point, the window opens, and a number of planets float inside, parade past the solitary sun and disappear. Inner and outer infinity melt into one single space, which, like our earth, our solar system, the whole Milky Way and other galaxies is racing towards an invisible Great Attractor.

Since this work was created, the existence of Nemesis, our sun's hypothetical twin has been disproved. On Sep 16, 2011, astronomers announced the discovery of the first planet circling a binary star, Kepler-16b.

This computer animation is part of the triptych «My Own Private Universe», on permanent display (rear projection) in the Swisscom Management building near Bern, Switzerland.

[takachan]

NASA、太陽をレンズにする「重力レンズ望遠鏡」コンセプト発表。825億km彼方に配置し系外惑星を詳細観測

　 NASA JPLが、太陽をレンズとして利用する宇宙望遠鏡の建造案を発表しました。といっても太陽そのものが望遠鏡のレンズになるわけではなく、その重力が引き起こす重力レンズ効果を利用するコンセプトです。 一般相対性理論によれば、(巨大な天体が引き起こす)強い重力は周囲の時空をゆがめます。このため、その付近を通過してくる光も時空の歪みによって曲げられ、引き伸ばされたり、分身の術のように複数見えたりする重力レンズ現象が発生します。 NASAが示した宇宙望遠鏡のコンセプトでは、この重力レンズがその向う側にある天体の光を引き伸ばす効果を、本当に望遠鏡のレンズとして利用します。 ただ、それには大きな問題があります。地球からもっとも手頃な位置にあって重力レンズを生み出せる天体といえば太陽ですが、正確な観測のためには太陽から550AUの位置に宇宙望遠鏡を配置しなければならないとのこと。 AU(Astronomical Unit)とは日本語で天文単位として太陽～地球間の平均距離であり、1AUがだいたい1億5000万kmぐらい。550AUは約825億kmというとんでもない距離になります。参考までに紹介すると、40年前に地球を飛び立ち太陽系を飛び出していったボイジャー探査機ですら、まだ地球から137AUの位置にいます。 さらに問題は、太陽から550AUの位置に宇宙望遠鏡を配置できたとしても、地球や太陽との位置関係から重力レンズの効果を使って観測できる期間はさらに制限されること。実際に運用を実現するにはかなりの技術的困難が予想されます。 それでもNASAが大真面目にこのようなコンセプトを持ち出すのは、それによって得られる知見が遥かに莫大なものとなるから。たとえば、7個の地球型惑星が見つかったTRAPPIST-1は日本でも大々的に報道され、7つの星の詳細な「イメージCG」が各メディアで紹介されました。しかしこのわずか40光年しか離れていない星々でも、観測された視覚的な映像は数ピクセルの白い点でしかありません。 　 This is a target pixel image of #TRAPPIST1. Its starlight and story traveled 40 yrs to reach the Kepler spacecraft.https://t.co/UJsLZ7sQgO pic.twitter.com/2Pg1DvuLTv - NASA Kepler and K2 (@NASAKepler) 2017年3月11日 　 重力レンズを使う宇宙望遠鏡なら映像が引き伸ばされるため、約100光年離れた位置の惑星でもおよそ1000 x 1000pxほどの解像度で、その表面も10km区切り程度で画像化できるとのこと。引き伸ばされた光のスペクトルデータからは、その星の大気成分も詳細に分析できるはずです。 もし、TRAPPIST-1の惑星どれかに文明があり、それを重力レンズ望遠鏡で観測できるならば、地球のように夜の側でもきらめく「文明の光」が見えるかもしれません。われわれが宇宙に一人ぼっちでないということがわかるのなら、この壮大な宇宙望遠鏡を作る価値もあると言えそうです。 [Image : Pr3t3nd3r via Getty Images] http://j.mp/2mvq9qF Engadget Japanese

[hiyyhs]

[playtime] cg!bahiyyih × gn!reader :: warnings - age regression (non-sexual), fluffy, oneshot, non idol au, featuring hikaru request , navigation

the sun was shining bright, accompanied by a light breeze. it was the perfect day to go do some fun outdoor activities. your morning was a scenic one, as you woke up particularly early and the sun was rising past the window. birds were chirping, and you could hear that buzzing sound from within the trees.

you had a good morning, you were awoken by your caregiver, bahiyyih, and the two of you decided to take advantage of the weather that day and to walk to the nearby park. it didn't take you long to get dressed all by yourself, which hiyyih was very proud of.

the park was relatively empty, thankfully. usually, the swings were all taken and kids were hogging each slide. they'd probably all come later in the day. you got lucky by coming as early as you did.

"do you want me to push you?" bahiyyih asked, which you nodded very enthusiastically to. she smiled, and began lightly pushing you, as to not startle you by the height. though, you still exclaimed, "higher!" and how could hiyyih refuse you? she gave you a big push, making you go "wee!" as you soar through the air.

soon enough, you got bored of the playground, and insisted you two go back home and relax for the rest of the day. and that you did.

you got the couch ready as bahiyyih made some movie theatre popcorn in the microwave, pillows and blankets everywhere. you'd probably end up getting hot with so much around you, but that's an issue for later.

by the time she came back, you were swaddled up putting on a movie on disney plus. you decided on 'princess and the frog', one you hadn't watched in a while.

to hiyyh's dismay, the popcorn went by fast, which probably wouldn't of if she wasn't grabbing a handful every 5 seconds. you didn't mind, mainly since you were too engrossed in the film to pay any attention.

by the time the film was over, your caregiver was asleep with her arm around you. as the credits played, with a calming song playing in the back, you rested your head onto bahiyyih's shoulder with a smile, hoping every day would be like this.