Shortfin mako sharks have been called the "cheetahs of the ocean," capable of swimming at estimated speeds of 70 or 80 miles per hour. To investigate just how the animals achieve this impressive feat, aeronautical engineer ...
General Physics
Mar 4, 2019
1
333
In the quest for fusion energy on earth, researchers use magnetic fields to insulate hot plasma from the walls of the chamber to maintain the reaction and prevent damage to interior surfaces. In the tokamak, a leading contender ...
Plasma Physics
Nov 13, 2013
15
1
An old, hilarious if somewhat juvenile party trick involves covertly tapping the top of someone's newly opened beer bottle and then standing back as the suds foam out onto the floor.
General Physics
Nov 24, 2013
2
0
Age-related macular degeneration is the primary cause of central vision loss and results in the center of the visual field being blurred or fully blacked out. Though treatable, some methods can be ineffective or cause unwanted ...
General Physics
Nov 24, 2019
0
37
Recent fusion experiments on the DIII-D tokamak at General Atomics (San Diego) and the Alcator C-Mod tokamak at MIT (Cambridge, Massachusetts), show that beaming microwaves into the center of the plasma can be used to control ...
Plasma Physics
Oct 28, 2014
2
0
Researchers at the DIII-D National Fusion Facility in San Diego have demonstrated a new approach for injecting microwaves into a fusion plasma that doubles the efficiency of a critical technique that could have major implications ...
Plasma Physics
Oct 21, 2019
0
104
Where does the proton get its spin? This question has puzzled physicists ever since experiments in the 1980s revealed that a proton's constituent quarks—the most fundamental building blocks of atomic nuclei—account for ...
General Physics
Oct 12, 2021
0
157
Using magnetic field thermal insulation to keep plasmas hot enough to achieve thermonuclear fusion was first proposed by the Italian physicist Enrico Fermi in 1945, and independently a few years later by Russian physicist ...
Plasma Physics
Oct 27, 2016
0
7
Research shows that a new telescope could detect a potential signature of life on other planets in as little as 60 hours.
General Physics
Apr 16, 2021
2
609
An enormous telescope complex in Tibet has captured the first evidence of ultrahigh-energy gamma rays spread across the Milky Way. The findings offer proof that undetected starry accelerators churn out cosmic rays, which ...
Astronomy
Mar 31, 2021
0
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