Category: science – Page 6
Astronomers have found a black hole in the early Universe that has a jet pointed at Earth, and which could help solve how the cosmic ‘dark ages’ came to an end.
A team led by Yale University found the ‘quasar’, which is brightening and dimming intensely.
Despite strong interest in using artificial intelligence to make research faster, easier and more accessible, researchers say they need more support to navigate its possibilities.
Join us on the latest stellar stories which delves into 20 scary and facinating concepts in science and philosophy.
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#philosophy Phil.
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#documentaries.
#scienceexplained
This video is a compilation of clips filmed from 2022. Information was correct at the time of filming.
From plastic eating worms to robot bees – scientific and technological advancements could be what saves our planet, and us, from extinction.
Best of Earth Science: http://bit.ly/EarthLabOriginals.
Best of BBC Earth: http://bit.ly/TheBestOfBBCEarthVideos
Can you make something invisible? Neil deGrasse Tyson and comedian Negin Farsad discover the science behind invisibility with professor of physics and optical science, Greg Gbur. What would real-life invisibility look like?
Can you be invisible in other parts of the magnetic spectrum? We discuss transparency versus invisibility and how metamaterials help us interact with different wavelengths. What does light have to do in order to make something invisible? We break down invisibility cloaks and other invisibility devices from fiction.
Could you make yourself invisible to all parts of the electromagnetic spectrum? We explore the main challenges in achieving invisibility and the difference between passive and active invisibility. How useful of a power would it be?
We discuss the interaction between waves and matter. What makes some waves reflect off matter and others pass through? Learn about x rays and how they work, plus, an at-home invisibility trick using prisms. Finally, could you make someone invisible to time?
Thanks to our PatronsDan, Nick Taylor, Beth Fitzpatrick, Jim, Laura Gilsman, and Gregory Greenwood for supporting us this week.
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Theoretical warp technology exists in what we know as the Alcubierre drive. In this video, I will explain how this theoretical warp technology works and the problems that we face in developing it.
You will also get to see some mathematically accurate simulations of a spaceship using an Alcubierre drive, travelling at 1,000 light years per second!
In Star Trek, Star Wars, Dune and many other sci-fi stories where space travel exists, the common question that viewers have is: how do these humans achieve faster than light travel? The term “Warp travel” and “Warp speed” were originally coined by the Star Trek franchise. It is also known by other franchises as “Jump” or “folding of space” and the engines that cause this to happen are the “warp drive” or the “hyper drive”
Ultimately, the idea of bending space is embedded within all of these sci-fi stories, and with good reason.
It is impossible to travel faster than light within space. But space itself can bend, fold, move, expand at any speed or rate.
The alcubierre drive uses the principals in general relativity to bend space around a spaceship in such a way, that the space itself begins to move, carrying along anything within it. So although the spaceship is not technically moving within the space it occupies, the space around the spaceship allows motion to occur.
Space Engine was used for the simulations.
Blender was used for the animations.
BIG Projects To Solve Pressing Issues In Science — Dr. Christopher Stubbs, Ph.D. — Professor of Physics and Astronomy, Harvard University.
Dr. Christopher Stubbs, Ph.D. is the Samuel C. Moncher Professor of Physics and Astronomy, and has recently served as the Dean of Science in the Faculty of Arts and Sciences, at Harvard University (https://astronomy.fas.harvard.edu/peo…
Dr. Stubbs is an experimental physicist working at the interface between particle physics, cosmology and gravitation. His interests include experimental tests of the foundations of gravitational physics, searches for dark matter, characterizing the dark energy, and observational cosmology.
Dr. Stubbs was a member of one of the two teams that first discovered dark energy by using supernovae to map out the history of cosmic expansion.
Dr. Stubbs is currently heavily engaged in the construction of the Large Synoptic Survey Telescope (LSST), for which he was the inaugural project scientist. He founded the APOLLO collaboration that is using lunar laser ranging and the Earth-Moon-Sun system to probe for novel gravitational effects that may result from physics beyond the standard model.