Newton's laws & how things move
Newton's 3 laws of motion (livescience)Newton's 3 laws of motion (NASA)Voyager 1 & 2 are still voyaging - this is how far they've gone in real time! (JPL, NASA)Outer space has a very low density of particles (Wikipedia)What is a rocket? (NASA)Rockets, fuel & Newton's 3 laws (MIT)The rocket equation (Fourth Millenium Foundation)Kennedy Space Center in Florida is awesome (Kennedy Space Center)Why is it so hard to travel to Mars?...Fuel is a big part of that (space.com)Mars facts (NASA)Mars has a very thin atmosphere (Cool Cosmos, Caltech)George Clooney (Wikipedia)Gravity (IMDb)The Martian (Andy Weir)What are gravity wells? (Explain xkcd)What is gravity assist? (JPL, NASA)Spacetime can bend: Space as a rubber sheet (University of Winnipeg)The Voyagers' trajectory was very carefully planned & used gravity assist to minimise fuel (JPL, NASA)Voyager 1 & 2 were launched in 1977 (JPL, NASA)There are a lot of forces trying to slow us down on Earth (the Physics Classroom)Newton's laws have been verified by experiment & observation for more than 200 years (Wikipedia)Newton's 'Principia' was first published in 1687 (Wikipedia)Neil deGrasse Tyson: My man, Sir Isaac Newton (Big Think, YouTube)Newton started inventing calculus when he was 23...wtf (Wikipedia)Doogie Howser, M.D. (IMDb)Newton's laws are amazing but don't work at very small scales, very high speeds or very strong gravitational fields (Wikipedia)Applications & limitations of Newton's laws (How Stuff Works)What is momentum? (BBC)What is momentum? (the Physics Classroom)What is velocity? (BBC)What is a bogie? (Wikipedia)Long trains take a long time to stop (Minnesota Operation Lifesaver)What is inertia? (the Physics Classroom)What is inertia? (Qualitative Reasoning Group, Northwestern University)What is the difference between inertia & momentum? (Quora)What is friction? (livescience)VO5 instant oomph powder (Priceline)'LiquiGlide' nonstick coating leaves zero waste behind...super cool (MIT, YouTube)Brian Cox's amazing experiment dropping a bowling ball & feathers in a vacuum (BBC Two, YouTube)The acceleration of gravity (the Physics Classroom)All objects free fall at the same rate of acceleration...even elephants (the Physics Classroom)Elon Musk (Wikipedia)Elon Musk (Instagram)How do planes fly? Using Newton's 3rd law (Explain That Stuff!)Liquid oxygen & liquid hydrogen are common rocket fuels, but there are others (Wikipedia)What is jet fuel? (Wikipedia)The first animals in space (Space.com)Yuri Gagarin: The first man in space (NASA)Google headquarters live search screens (YouTube)How do jet engines work? (NASA)How do jet engines work? (Explain That Stuff!)How does an ion thruster on a rocket ship work? (NASA)I'm sure Ian Ziering from Beverly Hills 90210 used to spell his name Ion (Wikipedia)What is a solar sail? 'New NASA spacecraft will be propelled by light' (National Geographic)First law of thermodynamics: Energy in a closed system cannot be gained or lost, just transferred (livescience)Potential & kinetic energy (BBC)Measuring friction on an atomic level (physics central)Brian Cox & Jeffrey Forshaw's book 'The quantum universe: Everything that can happen, does happen' (goodreads)How geckos stick on der Waals...get it, get it? (Science)Levitating pot plants: Not from our conversation...just super cool...I'm sure Newton's laws are involved here somehow (Domain)Corrections
Sorry Johnny, some experts don't agree that momentum can be thought of as the amount of energy required to stop something moving (Quora)Sorry Lucy, the first dog in space isn't stuffed, Laika died in orbit (Time)Cheeky review? (If we may be so bold)
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