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Archive for the ‘physics’ category: Page 106

Dec 3, 2022

Microwave thruster makes for clean-burning jet

Posted by in categories: energy, physics, space

Year 2020 face_with_colon_three Propellant free thruster.


I usually approach papers on the subject of alternative thrusters with a certain degree of cynicism. But we’ve finally been given a study on microwave thrusters that doesn’t rely on impossible physics. Instead, it used a plain old plasma thruster.

Plasma thrusters have generally been thought of as a means of propulsion in space, but now one has been designed to operate under atmospheric conditions. According to the researchers involved, it’s an air plasma thruster that has the potential to produce the same thrust as a commercial jet engine.

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Dec 3, 2022

Kip Thorne — Is Time Travel Possible?

Posted by in categories: physics, time travel

What does time travel reveal about the nature of space and time? What about the laws of physics under extreme conditions?

For more on information and video interviews with Kip Thorne, please visit http://bit.ly/1DpWJQU

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Dec 3, 2022

Mushroom-based substrates create flexible and sustainable electronics

Posted by in categories: physics, sustainability

Fungal mycelium skins can be used as substrates for electronic devices, physicists and materials sci.

Dec 2, 2022

Is It Possible to Build a Time Machine? With Paul Davies

Posted by in categories: media & arts, physics, time travel

Time travel is one of sci-fi’s favorite tools. But is it possible to build a real time machine? Could you travel into the future or the past? Paul Davies joins John Michael Godlier to discuss the possibilities of time travel and how it would work within Einstein’s theory of general relativity.

Paul Davies is a theoretical physicist and regents professor at the department of physics at Arizona State University. He is a cosmologist, astrobiologist and best-selling science author, including the author of How to Build a Time Machine.
https://amzn.to/2Q5IKNt (affiliate link)

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Dec 2, 2022

Superluminal Time Travel + Time Warp Challenge Answer

Posted by in categories: physics, space travel, time travel

Viewers like you help make PBS (Thank you 😃). Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE

Find out how traveling faster than light and traveling back in time are the same thing. And be sure to tell PBS what types of shows you want to see at https://www.surveymonkey.com/r/pbsds2017 25 random participants in the survey will receive PBS t-shirts.

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Nov 30, 2022

Black hole simulated in lab began glowing

Posted by in categories: cosmology, physics

Physicists have simulated a black hole in a lab. Then it started glowing.

This allowed the team to realise that their black hole analogue may help explain so-called “Hawking radiation”, theorised to be emitted by black holes in nature.

Their analysis of the black hole in a bottle is presented in a paper published in the Physical Review Research journal.

Nov 30, 2022

How Vacuum Decay Would Destroy The Universe

Posted by in categories: media & arts, physics, space

Sign Up on Patreon to get access to the Space Time Discord!
https://www.patreon.com/pbsspacetime.

The universe is going to end. But of all the possible ends of the universe vacuum decay would have to be the most thorough — because it could totally rewrite the laws of physics. Today I hope to help you understand exactly how terrified you should be.

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Nov 30, 2022

Black hole ripping a star apart: Rare phenomenon observed by astronomers

Posted by in categories: cosmology, physics

Carl knox / ozgrav, ARC centre of excellence for gravitational wave discovery, swinburne university of technology.

The specific event they observed and analyzed is so rare that it has only been seen three other times throughout history.

Nov 30, 2022

20 Times More Intense: New Material Will Help Improve Phone and Television Displays

Posted by in categories: chemistry, computing, mobile phones, physics

Scientists have created, synthesized, and analyzed a new class of fluorophores, which are luminous chemical compounds. These are the new bullet systems based on cyanopyrazine. According to research, the inclusion of cyanogroup compounds in fluorophores considerably boosts the efficiency of organic light-emitting diodes (OLED). This indicates they can be utilized to develop new materials to improve the brightness of smartphone, computer, and television screens. The researchers’ findings were recently published in the journal Dyes and Pigments.

The research was led by Egor Verbitskiy, the director of the Postovsky Institute of Organic Synthesis Ural Branch of RAS and a member of the Laboratory of Medical Chemistry and Advanced Organic Materials at the Ural Federal University. He states that physicists were aware that introducing cyanogroups to fluorophores can enhance the OLEDs’ properties and overall efficiency.

Nov 30, 2022

Scientists Baffled After Observing Stars That Could Challenges Newton’s Laws of Gravity

Posted by in category: physics

An analysis of star clusters suggests that some of them are apparently defying the known laws of physics, leaving experts baffled.