Cavendish experiment (gravity), Young double-slit experiment (interference of light) and Rutherford gold foil experiment (atomic nucleus).
Other Sci-Show videos
Saturday, 5 January 2013
Space Junk & The Swiss 'Janitor Satellite'
Space junk is a real problem. NASA now tracks around 20,000 pieces of debris orbiting Earth, most of them larger than 10cm across. Since the average speed of a collision between orbiting objects is 10 km/s these pieces of trash can cause a lot of damage despite their small size.
Scientists in Switzerland have a plan to clean up space junk - it involves creating a 'Janitor Satellite' that will seek out pieces of space junk to drag back into the atmosphere causing them to burn up.
This video was created for the Aussie science show Catalyst on the ABC.
Other Veritasium videos
Other Veritasium videos
Friday, 4 January 2013
Synchrotrons and Preserving the Tudor Warship Mary Rose
Ritimukta Sarangi, staff scientist in the Structural Molecular Biology group at SSRL, a subdivision of SLAC, delivered the Public Lecture, "Saving the Mary Rose: Synchrotrons and the Preservation of a Tudor Warship." (October 2, 2012)
Sarangi's talk, explains how synchrotron-generated X-rays were used to help preserve a 500-year-old warship after it was salvaged from the bottom of the Atlantic in 1985.
The warship was the Mary Rose, built in 1511 and the flagship of King Henry VIII. She sank in 1545 while en route to confront the French fleet in battle. The ship lay undersea for 440 years before being raised, and her salvaging was not the end of her troubles. The restored Mary Rose is being constantly treated to preserve the wood structure, but in 2002 a new problem arose that began rapidly destroying the ship.
Sarangi tells the story of how research at SSRL uncovered the cause of the problem and a way to help. As Sarangi says, "This lecture will present the amazing story of archeology, chemistry, and physics that preserves this precious artifact and gives us a glimpse back into Tudor times."
Lecturer: Ritimukta Sarangi, SLAC
Sarangi's talk, explains how synchrotron-generated X-rays were used to help preserve a 500-year-old warship after it was salvaged from the bottom of the Atlantic in 1985.
The warship was the Mary Rose, built in 1511 and the flagship of King Henry VIII. She sank in 1545 while en route to confront the French fleet in battle. The ship lay undersea for 440 years before being raised, and her salvaging was not the end of her troubles. The restored Mary Rose is being constantly treated to preserve the wood structure, but in 2002 a new problem arose that began rapidly destroying the ship.
Sarangi tells the story of how research at SSRL uncovered the cause of the problem and a way to help. As Sarangi says, "This lecture will present the amazing story of archeology, chemistry, and physics that preserves this precious artifact and gives us a glimpse back into Tudor times."
Lecturer: Ritimukta Sarangi, SLAC
Momemtum at high velocity
When velocity is very high, momentum is not the product of mass and velocity.
Other Minute Physics videos
Other Minute Physics videos
Thursday, 3 January 2013
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