100 Greatest Discoveries: Signature Light of Elements
On Science Channel's "100 Greatest Discoveries," learn why every atom, when burned, has a different color.
Most Watched in Physical Science
How Solar Cars Work
Solar cells use sunlight to produce electricity. But can they really generate enough energy to power a car? Find out in this HowStuffWorks video.
How Nanotechnology Works
Nanotechnology deals with materials and machines on an incredibly tiny scale. To learn more about nanotechnology, check out this HowStuffWorks video.
MythBusters: Walking on Water Uncut
Though they have made multiple attempts with various devices, The MythBusters have never been able to walk on water. Will Adam's new apparatus, the Aqua Skipper, help him stay afloat?
From the archives of Discovery: Solar energy is mass-produced on a large farm of solar panels. Learn more about solar power, solar farms and alternative energy in this video.
Solved: Fingerprint Analysis
Fingerprint technology must advance in order to keep up with the future. Learn more in this clip from Investigation Discovery's "Solved" series.
Solved: Computer Forensics
In this clip from Investigation Discovery's "Solved," investigators working the William McGuire murder case use computer forensics to mine incriminating evidence from the desktop computer of McGuire's wife.
Understanding: Fire at Yellowstone Park
In the summer of 1988 Yellowstone Park caught fire. Usually Yellowstone trees are too wet to catch fire. This time however, conditions were different. Learn more about the fire on TLC's "Understanding."
Recent Videos in Physical Science
What is eloptic energy?
Most people probably haven't heard of the inventor T. Galen Hieronymus, but according to his advocates his machines are able capable of everything from remote analysis to remote healing -- so what is eloptic energy? Tune in to learn more.
MythBusters: Tiny Bubbles In The Pool
Adam goes swimming for science. In typical Mythbusters fashion, Jamie and Adam ramp up the test and crank the compressor to maximum power to test whether or not it's possible to swim in bubbly water.
Energy 365: Renewable Energy Race
At the American Le Mans Green Challenge, sophisticated race cars battle head-to-head to determine which fuels can compete with, or even surpass, gasoline -- the dominant fuel for the last century.
Find out how a special binocular telescope allows viewers to look at the stars.
Time Warp: Sumo Wrestler 1
Both sumo wrestlers' bodies play a role in this throw. With a hand on his opponent's belt, one gets a grip and starts the throw. The other's momentum carries him forward. Watch this video from Discovery Channel's "Time Warp."
G Word: Chicken Circuit Boards
In this clip from Planet Green's "G Word," tech correspondent Joel Johnson meets a professor who is turning chicken feathers into circuit boards.
Time Warp: Tesla Coil
A Tesla coil drums up so much electricity, surplus voltage shoots out. But since high-frequency electricity tends to travel outside objects, suits made with conductive materials protect the person inside.