(Phys.org) —The sight of a tiny hummingbird hovering in front of a flower and then darting to another with lightning speed amazes and delights. But it also leaves watchers with a persistent question: How do they do it?
General Physics
Nov 23, 2014
1
0
Scientists studying the body's cancer-fighting T cells have a serious problem: When they culture them in the lab, the T cells sit around at equilibrium, waiting to bump into cancerous cells. But that's not how they operate ...
Cell & Microbiology
Aug 14, 2017
0
881
If you add quantum dots - nanocrystals 10,000 times smaller than the width of a human hair - to a smartphone battery it will charge in 30 seconds, but the effect only lasts for a few recharge cycles.
Nanophysics
Nov 11, 2015
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2579
Shrouded in mystery since their discovery, the phenomenon of black holes continues to be one of the most mind-boggling enigmas in our universe.
Astronomy
Nov 18, 2019
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836
(Phys.org) —You are walking down the street with a friend. A shot is fired. The two of you duck behind the nearest cover and you pull out your smartphone. A map of the neighborhood pops up on its screen with a large red ...
Engineering
Apr 25, 2013
0
0
The grizzled asteroid miner is a stock character in science fiction. Now, a couple of recent events - one legal and the other technological - have brought asteroid mining a step closer to reality.
Space Exploration
Nov 20, 2015
4
217
Black holes are some of the most exotic objects in the universe. They are the final evolutionary stage of giant stars much larger than the sun. When these stars explode, their cores collapse down to the size of large asteroid. ...
Space Exploration
Dec 17, 2009
1
0
Earth's first dinner party wasn't impressive, just a bunch of soft-bodied Ediacaran organisms sunk into sediment on the ocean floor, sharing in scraps of organic matter suspended in the water around them.
Archaeology
Jun 19, 2019
3
104
It's very difficult to kick a star out of the galaxy.
Astronomy
Apr 30, 2012
15
0
Growing up in a small community has its advantages, but if you want to learn from world experts, you may have better luck in a big city. This is the case in the world of birds as well. Large populations of birds might be ...
Evolution
Apr 29, 2022
0
75
