Antimatter
What is antimatter? What does it tell us about the structure of our universe? Can we ever detect it?
More details | Watch nowMobile Phones – Safe?
A presentation discussing the science of mobile phones and associated radiation. Are mobile phones safe?
More details | Watch nowMillie Dresselhaus
Mildred Dresselhaus was born in Brooklyn, New York and grew up in a poor section of the Bronx. She was a Fullbright Fellow at the Cavendish Laboratory, Cambridge University (UK) in 1951-52 and obtained a PhD at the University of Chicago in 1958. Mill....
More details | Watch nowCosmic X-ray sources
Riccardo Giacconi , USA was awarded half of the Nobel Prize for Physics in 2002 for 'for pioneering contributions to astrophysics, which have led to the discovery of cosmic X-ray sources.
More details | Watch nowIvar Giaever
Ivar Giaever won the Nobel Prize in 1973 for his investigations of tunneling in semiconductors and superconductors. Giaever worked on metal thin films and tunneling and took a Solid State physics course. Although he knew nothing about Superconductivi....
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K. Alexander Müller shared the Nobel Prize for Physics with J. Georg Bednorz in 1987 'for their important break-through in the discovery of superconductivity in ceramic materials'. At the age of 9 Mller was given a radio (a single vacuum tube receiv....
More details | Watch nowSuperfluidity in Helium 3 – Nobel Physics Prize 1996
Together Osheroff and Richardson talk about their different scientific research backgrounds which leads a fascinating discussion on their joint work for the Noble Prize.
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A gentle lead-in to the subject, Feynman starts by discussing photons and their properties.
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The main problems associated with communicating with distant space probes like Voyager 1 are investigated. The role played by diffraction in limiting the amount of power receivable on Earth is discussed. The further problems of reaching a nearby st....
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F=ma (laws 1&2). Forces come in pairs that add to zero (3). Newton's laws apply in inertial frames of reference. Some common approximations made in applying them.
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In simple harmonic motion, displacement, velocity and acceleration vary sinusoidally with time, but with different phases.
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Uniform circular motion: angular displacement and velocity are introduced and centripetal acceleration is determined.
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