Here you will find free STEM resources for teachers and students.
These are short notes, explanations, activities, and other tidbits to whet your appetite for more STEM learning.
CryptocurrencyBitcoin, Litecoin, Ethereum. Are these new currencies for real? Have you even heard of them? Read this very basic introduction to crytocurrency and make sure you are ready for the revolution!
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Dish Soap BoatCan dish soap actually fuel a boat through the water. Try this simple and fun experiment to see for yourself.
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Bernoulli and his Principle |
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Learn about the principle that keeps planes aloft.
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Watch this Video Series on Light and Matter interactionThis 3 part series talks about the 3 major ways incident photons interact with matter.
1: The Photoelectric Effect 2: Compton Scattering 3: Pair Production |
Time DilationIt is mind bending but true. Traveling fast slows down time. How much younger will the first people to Mars be when they land. Let's find out.
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Simple NavigationHow did the early explorers transit the ocean? Learn the basics of Dead Reckoning and Lines of Constant Latitude.
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Unit ConversionUnit conversions occur in a lot of subjects in school and in life. Knowing how to do them accurately will give you the confidence to express yourself in the units you want.
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Planetary DataA chart of some key values for the planets in our solar system. And I included Pluto. You got a problem with that?
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The AtmosphereDo you know the 5 layers of our atmosphere? You will.
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Partial PressureAre you safe in a room with 20% oxygen? You may not be. Take a ride on the International Space Station to find out why.
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The Phase of the MoonYou can look outside. But why when you can calculate it? Calculate the Julian Day and use it to see how many New Moons we have had since the reference date. Then, see how far we are into the current cycle. Grab your calculator!
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Radiation ShieldingOne of the major challenges to a flight to Mars is the radiation exposure. Can you come up with a scheme to protect our astronauts that doesn't break the nation budget?
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OptimizationHow much fence do I really need? Fence is expensive. Let's look at how an engineer would design it for lowest cost. Optimization is an important tool to understand.
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Photon Diffusion for the SunHave you ever heard that it takes about eight and a half minutes for light from the sun to reach Earth? That's kinda true. Read the other half of the story and be amazed.
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Probability of Same BirthdayHow many people do you need to have in a room to make the odds that two of those people have the same birthday be 50/50? Do you know? Can you guess? You may be surprised what the math shows us.
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Photoelectric EffectEinstein lost a lot of electrons and little sleep over this Nobel Prize winning discovery. Read how electrons can get so excited they ditch their atoms. And what about that hazy moon dust?
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Quantum TunnelingThe sun shouldn't shine. But it does. And all because basketballs can pass through walls. Find out how quantum tunneling seemingly does the impossible.
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Reverse OsmosisOsmosis is how cells conduct business and plants suck up water. But what is it really? Find out how to make fresh water from sea water with this neat little process.
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BallisticsBallistics is the study of projectiles in motion. Amazingly, using calculus, you can derive all of the needed equations by just starting with what Newton figured out so long ago. Things fall down.
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