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Category Archives: Unit 3
Special Relativity Part 1: From Galileo to Einstein Special Relativity Part 2: Time Dilation and the Twin Paradox Special Relativity Part 3: Length Contraction Special Relativity Part 4: Mass-Energy Equivalence or E = mc² General Relativity: The Curvature of Spacetime
How can just two rules of Einstein’s 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time?
Einstein’s classic thought experiment involves sitting on a train travelling at the speed of light. If you hold a mirror in front of your face, will you see your reflection in a mirror? How could light from your face reach … Continue reading
If you were driving at the speed of light and turned on your headlights, what would happen?
Here is a copy of the exam formula sheet with rearrangements of equations. It’s a very long list; it would be useful to make sure that you have the rearrangements (particularly kinematics and gravity) on your own summary sheet.
Photonicinduction and Polar again take control of the power supply but this time test an Electric Kettle to it’s limits and beyond, the speed and power is surprising.
Watch a soda can rip itself apart in a fiery explosion at 11,000fps with a Phantom high speed camera. Running a current through a coil, produces an electromagnet. Turn up the voltage in this experiment, and make that current strong … Continue reading