I was reading about Vortices and after hours of research online, out of the blue I stumbled upon this amazing bird. This is the Red Necked Phalarope and from the looks of it seems to have put vortices to a really productive use - catching its prey.
By rotating around ~60-80 times a minute, it produces an upward vortex that sucks out insects/bugs/crustaceans from the water, which it swiftly picks up with its beak and eats. ( This one would have aced the Fluids class for sure :D)
This is analogous to tornadoes sweeping up cars and houses along its way in an upward swirl.
** The actual dynamics of vortices of course is waay more complicated. ;)
*** There are three species of phalarope (red-necked, red/grey, and Wilson’s), and they can all feed like that.
If you and I are in separate space ships both traveling fast, there’s literally no possible way to determine if I am staying still and you are moving, or if you are staying still and I am moving, or if we are both moving. Also, from your perspective time will flow normally for you and slower for me, but from my perspective time will flow normally for me and slow for you.
Basically, everything, including time, is completely relative.
“QUANTUM BREAKTHROUGH COULD PAVE THE WAY FOR FUTURE ENCRYPTED INTERNET”
at the University of Science and Technology in Hefei, China have
successfully beamed ‘entangled’ particles of light from a satellite with
a specialized quantum optical payload to ground stations, paving the
way for a future global quantum internet. The experiment
relied on the world’s first quantum-enabled spacecraft - a Chinese
satellite called Micius. As it travelled over China, the satellite
created pairs of photons with properties that were linked through
quantum entanglement. It then beamed these simultaneously to three
ground stations - travelling up to 2,000 km (1,240 miles) before
reaching their destination. Researchers believe that by
linking particles in this way, encrypted information could be sent all
around the world across a quantum network with no danger of anybody
decrypting and reading the content, as can be done currently on the
existing internet. “It’s an important step towards a worldwide
quantum network,“ said Anton Zeilinger at the Vienna Centre for Quantum
Science. "If you
envisage a quantum network, the question is how to cover large distances
and that cannot be done with glass fibres on the ground. You have to go
into space, because in glass fibres you lose the signal. It’s very
important to show that it works with satellites, so I’m very excited by
Possible solutions to the Fermi paradox, which is the apparent contradiction between the lack of evidence and high probability estimates given by the Drake equation for the existence of extraterrestrial civilizations.
physics is so fucking cool like we’re just tiny little dots living on a slightly bigger tiny little dot but we figured out all these rules and explanations for the stuff we see around us and for the stuff we don’t see but want to really bad
the gold you have in your bracelet, earring, or necklace? it was forged in the heart of a dying star much larger than our own, in a brilliant and enormous explosion that, for a moment, outshone the entire galaxy.
These are the work of Marlon Tenório, who runs a blog called minimalmathconcepts. What he does is take concepts and illustrate them in a exquisite fashion. Check him out! His work is remarkable.
And if you really like his work, you can also buy his goodies on-line here.
Kudos MMC+ on such a good work and all the very best to you mate :)
** When FYP surfaced on Tumblr, we were just another blog. And big giants like space-exploration and mind-blowing-science, were so generous to uplift us. And we are just following the Tumblr tradition :) Cheers!