In the brain, when neurons fire off electrical signals to their neighbors, this happens through an "all-or-none" response. The signal only happens once conditions in the cell breach a certain threshold.
Earth Sciences
Jul 8, 2019
29
6704
Espresso coffee is brewed by first grinding roasted coffee beans into grains. Hot water then forces its way through a bed of coffee grains at high pressure, and the soluble content of the coffee grains dissolves into the ...
General Physics
May 9, 2023
3
430
Aerospace engineers at MIT are testing a new concept for a hovering rover that levitates by harnessing the moon's natural charge.
Space Exploration
Dec 21, 2021
1
372
An unfortunate church dinner more than 100 years ago did more than just spread typhoid fever to scores of Californians. It led theorists on a quest to understand why many diseases - including typhoid, measles, polio, malaria, ...
Mathematics
Jan 2, 2018
3
245
New research from the University of Oxford, Yellowstone National Park, and Penn State, published today in the journal Science, may have finally solved why wolves change color across the North American continent.
Plants & Animals
Oct 20, 2022
0
475
Patterns abound in nature, from zebra stripes and leopard spots to honeycombs and bands of clouds. Somehow, these patterns form and organize all by themselves. To better understand how, researchers have now created a new ...
Plasma Physics
Aug 23, 2016
19
34
In most living animals, egg cells are vastly larger than sperm cells. In humans, for example, a single egg is 10 million times the volume of a sperm cell.
Evolution
Apr 16, 2021
0
51
Researchers at IIT-Istituto Italiano di Tecnologia created the first soft robot mimicking plant tendrils. It is able to curl and climb using the same physical principles determining water transport in plants. The research ...
Robotics
Jan 25, 2019
0
8
Imagine a world with precision medicine, where a swarm of microrobots delivers a payload of medicine directly to ailing cells. Or one where aerial or marine drones can collectively survey an area while exchanging minimal ...
Quantum Physics
Mar 1, 2023
0
215
The natural world is astonishingly complex. After centuries of study, scientists still have much to learn about how all the species in an ecosystem coexist, for example. New research on microbial communities published in ...
Ecology
Sep 23, 2020
0
73
