#electromagnetic radiation

[g-h-o-s-t-2000]

the lost verse of the night

[stone-cold-groove]

U.S. Federal Civil Defense Administration’s CONELRAD brochure - 1957.

[somethingusefulfromflorida]

Magic is just electromagnetic radiation that propagates perpendicular to the current known spectrum. Physicists prefer to call it "complex radiation," because they hate whimsy. Where's my Nobel Prize?

[zhuqiang]

With the continuous development of modern technology, our life has become more and more convenient and high-tech. However, follow-up problems also follow, such as privacy leakage, information theft, etc. Signal shielding fabrics can effectively protect our privacy and information security.

Signal blocking fabrics protect our devices and personal information by shielding electromagnetic signals. It can be used for storing personal information such as mobile phone bags and bank card bags. These fabrics are usually made of materials such as metal fibers or carbon fibers, which have a good killing effect and can effectively shield wireless electromagnetic waves in the surrounding environment.

In addition, the signal shielding cloth is also waterproof, anti-fouling, wear-resistant and other characteristics, very practical and durable.

If you are worried about your privacy leakage, or worry about information security, then this signal shielding cloth is a good choice. In everyday life, you can gain more peace of mind and peace of mind by protecting your privacy and personal information with signal blocking fabric.

I hope everyone can pay attention to the protection of personal information, choose high-quality signal shielding fabrics, and make our lives safer and more convenient

[sidewalkchemistry]

@carriebwellness on Instagram

[er-cryptid]

Electromagnetic Radiation Types

Radio Waves -- discovered by Heinrich Hertz -- discovered during an investigation on electrical sparks

Infrared Waves -- beyond either end of the visible spectrum

Ultraviolet Waves -- beyond either end of the visible spectrum

X-Rays -- discovered by Wilhelm Rontgen -- produced when a beam of electrons collided with a metal target

Y-Rays -- discovered by HEnri Becquerel -- discovered while investigating radioactive substances

[9th-empress-suravi]

👾 A Strange energy waves felt through head. Today, 22/04/2024, afternoon I felt a strange wave flow through my body and head suddenly. I can feel that the wave coming from North direction to South direction on Earth. At first I thought it's an earthquake but actually there is no earthquake in my area. The what is the wave I felt?〰️

⭐Anyone else had this experience????

Please write on comment section......

[stopsmartmetersaustralia]

Victorian Petition to allow disabling of remote function of electricity smart meters

Current regulations in Victoria do not allow for the disabling of the remote function of electricity smart meters. The fact remains that Victorians are subjected to among the harshest smart meter policies in Australia.  Elsewhere, customers have the right to refuse a meter with wireless communications.  In other Australian jurisdictions, even if a smart meter has already been installed, customers…

[jcmarchi]

New Device Which Can Withstand 1400C Temperatures Could Improve Solar Energy Production - Technology Org

New Post has been published on https://thedigitalinsider.com/new-device-which-can-withstand-1400c-temperatures-could-improve-solar-energy-production-technology-org/

New Device Which Can Withstand 1400C Temperatures Could Improve Solar Energy Production - Technology Org

An innovative probe which can operate in temperatures as high as molten lava has been created by researchers.

  The device that is resistant to extremely high temperatures. Image credit: Dr Younes Belrhiti, University of Bristol

The team from the University of Bristol and CEA Commissariat à l’Energie Atomique in France have designed and successfully tested rotary blades for generating flow in molten silicon, crucial for industries such as steel or nuclear which rely on molten metal control and impurity detection.

Traditional lab analysis is slow, costly, and lacks real-time data. The scientists set out to develop a method for real-time impurity detection with a very low detection limit, the lowest true concentration, that will almost always be detected in molten silicon used for solar cells, tackling challenges like high temperatures environment and the presence of vapours and oxides.

Lead author Dr Younes Belrhiti senior research associate from Bristol’s School of Electrical, Electronic and Mechanical Engineering said: “Our study introduced an innovative high-temperature probe based on mechanical stirring, ensuring a clean, representative and stable surface for real-time chemical analysis of molten silicon.”

Spectroscopy techniques measure and analyze the interaction between electromagnetic radiation and matter to provide insights into the composition, structure, and properties of substances. LIBS (laser-induced breakdown spectroscopy) is a remote and fast spectroscopic technique that can be applied to any material (liquid, solid, and aerosol).

Recently, its application to metallurgical melts has known an increasing interest in controlling the melt. However, LIBS applications based on performing laser ablations on the top of a liquid present drawbacks due to the lack of renewal and stability of the analysed surface. The bath surface exposed to the furnace atmosphere may be chemically modified (oxidized or nitrated) leading to the presence of a slag so it is not representative of the chemical composition of the melt.

At high temperatures, vapours may interfere with a spectroscopy laser beam. In some cases, the spectrum emitted by the plasma can be masked by the hot metal emissions as it behaves like a black body. Considering these difficulties, several devices have been developed to apply LIBS on molten metals which have some limitations such as instability.

In this study, published today in the journal Heliyon, a mechanical stirring of the melt by innovative rotary blades is proposed to be combined with LIBS. Their rotation will generate a representative, renewed, and stable surface as the target of the LIBS laser for an in-situ analysis at high temperatures.

Dr Belrhiti added: “We designed and tested innovative rotary blades for generating flow in molten silicon. Then, we developed the associated probe coupled with the spectroscopic technique LIBS, ensuring its functionality in high-temperature conditions.

“The developed probe offers a faster and more cost-effective way to detect impurities in molten materials used for solar cells, thanks to innovative mechanical stirring and spectroscopy that ensures accurate real-time analysis, paving the way for more efficient solar energy production.”

The mechanical stirring-based probe enables efficient impurity detection in molten silicon, enhancing the quality control of photovoltaic cells. This technology can be adapted for various high-temperature applications beyond solar cells, such as in steel and nuclear industries.

Having validated their method on molten silicon, their next step is to explore its application in other high-temperature environments, broadening its potential industrial uses.

Source: University of Bristol

You can offer your link to a page which is relevant to the topic of this post.

[tenth-sentence]

An alternative way to describe electromagnetic radiation is in terms of its energy, where E = hv.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[g-h-o-s-t-2000]

There’s nobody on the other end of the phone?

[stone-cold-groove]

U.S. Federal Civil Defense Administration’s CONELRAD brochure - 1957.

[somethingusefulfromflorida]

From now on I will be referring to the color red as "ultraheat" and the color violet as "infrablacklight"

[zhuqiang]

What is the use of shielding cloth?

shielding cloth can effectively suppress electromagnetic interference, and at the same time, it can reduce the attenuation of transmission signals in FPC, and reduce the incompleteness of transmission signals.

Most of the shielding cloth is made of silver fiber, which can shield 99% of electromagnetic radiation and electromagnetic wave signals, and because it is cloth, it can also be made into maternity clothing or other products for protection. Shielding cloth is not only used for clothing, but also professional shielding clothing for strong radiation work such as electronics and electromagnetics, shielding room shielding cloth, special cloth for shielding components in the IT industry, popular touch screen gloves, radiation-proof curtains, etc. And the price is close to the people, it is the most cost-effective product except radiation protection clothing.

[whats-in-a-sentence]

We can cause atoms or molecules to undergo a transition from energy state E1 to a higher energy state E2 by irradiating then with electromagnetic radiation corresponding to the energy difference between states E1 and E2 illustrated schematically in figure 20.4.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[harmeet-saggi]

The Impact Of Mobile Radiation On Brain Health: What You Need To Know

Welcome, tech enthusiasts! Today, we're diving into a topic that's been buzzing for years: the impact of mobile radiation on brain health. Is it a genuine concern, or is it just another urban legend of the digital age? Let's unravel the mysteries surrounding this topic and empower you to make informed choices.