Science has finally confirmed that Einstein was right — gravitational waves DO exist: http://engt.co/1PPNv4W
Archive for the ‘physics’ category: Page 284
A landmark day for Einstein and our understanding of the universe: the detection of gravitational waves. World Science Festival’s own Brian Greene explains the discovery.
Scientists Have Confirmed the Existence of Gravitational Waves.
We just found gravitational waves!! Scientists at LIGO have confirmed!
Feb 10, 2016
Black Holes Could Be Gateways After All
Posted by Andreas Matt in categories: computing, cosmology, physics
Physicists can now simulate the interiors of black holes using high-powered computers–and it looks like science fiction authors were right: black holes could be portals for space travel.
Feb 8, 2016
What Are Gravitational Waves And Why Do They Matter?
Posted by Dan Kummer in category: physics
Physicists have been buzzing (or rather, tweeting) about the possibility that the Laser Interferometer Gravitational-Wave Observatory (LIGO) experiment finally discovered gravitational waves. LIGO has been searching for these cosmic ripples for over a decade. Last September, it upgraded to Advanced-LIGO, a more sensitive system that’s also better at filtering out noise. Advanced-LIGO has a much stronger chance of collecting concrete evidence of gravitational waves—if it hasn’t already.
Scientists may be excited, but talk of gravitational waves leaves most people scratching their heads. What are these cosmic vibrations, and why are they making waves in the scientific community?
Continue reading “What Are Gravitational Waves And Why Do They Matter?” »
Feb 8, 2016
China’s nuclear fusion machine just smashed Germany’s hydrogen plasma record
Posted by Dan Kummer in categories: nuclear energy, physics
Just last week, we reported that Germany’s revolutionary nuclear fusion machine managed to heat hydrogen gas to 80 million degrees Celsius, and sustain a cloud of hydrogen plasma for a quarter of a second. This was a huge milestone in the decades-long pursuit of controlled nuclear fusion, because if we can produce and hold onto hydrogen plasma for a certain period, we can harness the clean, practically limitless energy that fuels our Sun.
Now physicists in China have announced that their own nuclear fusion machine, called the Experimental Advanced Superconducting Tokamak (EAST), has produced hydrogen plasma at 49.999 million degrees Celsius, and held onto it for an impressive 102 seconds.
While this is nowhere near the hottest temperature that’s been produced by an experiment — that honour goes to the Large Hadron Collider, which hit a whopping 4 trillion degrees Celsius (250,000 times hotter than the centre of the Sun) back in 2012 — the team from China’s Institute of Physical Science in Hefei managed to recreate solar conditions for well over a minute.
Feb 8, 2016
Physicists Figure Out A New Property Of Superconductivity
Posted by Shailesh Prasad in categories: physics, transportation
The finding could help scientists achieve reliable room-temperature superconductivity, which would help pave the way for innovations like levitating trains.
Feb 2, 2016
South Pole’s next generation of discovery — By Carla Reiter | University of Chicago
Posted by Odette Bohr Dienel in categories: astronomy, physics, science
“Later this year, during what passes for summer in Antarctica, a group of Chicago scientists will arrive at the Amundsen–Scott South Pole research station to install a new and enhanced instrument designed to plumb the earliest history of the cosmos.”
Jan 28, 2016
Hawking’s latest black-hole paper splits physicists
Posted by Andreas Matt in category: physics
I do indeed think it solves he firewall problem, kind of trivially so. I am somewhat puzzled they didn’t even mention this in their paper.
Jan 28, 2016
Why a new physics theory could rewrite the textbooks
Posted by Shailesh Prasad in categories: physics, space
Scientists are closer to changing everything we know about one of the basic building blocks of the universe, according to an international group of physics experts involving the University of Adelaide.
