- PBS LearningMedia | Teaching Resources For Students And Teachers
- 1440 | find resources
- Galvon
- 'Magical' material Galvorn could change how we power electronics
- Galvorn is made as tape, yarn, thread, or mesh, among other forms.
- Galvorn is stronger than steel, lighter than aluminum, and has the conductivity of copper. Strong. Conductive. Lightweight.
- DexMat
- Simplicity
- MIT Technology Review (@mittechreview) on Flipboard
- The Simple Idea Behind Einstein's Greatest Discoveries
- Quanta Magazine – Illuminating Science | Quanta Magazine
- Thorium | Stuff They Don't Want You to Know - The Thorium - YouTube
- Mechanical Watch - shows how a mechanical watch works.
- TED: Ideas worth spreading
- Astronomy
- NASA
- The Nine Planets Solar System Tour
- Astronomy Books for Adults - Thanks to Jasmine Dyoco for recommending this site.
- Aerospace History: The Space Shuttle - Thanks to Jasmine Dyoco for recommending this site.
- The Moon: A Resource Guide « Astronomical Society - Thanks to Jasmine Dyoco for recommending this site.
- The Observatory: A Guide to Astronomy Resources | Exploratorium - Thanks to Jasmine Dyoco for recommending this site.
Three-body problem - Three-body problem - Wikipedia
- Three-body problem - Wikipedia = 3-body problem
- Matter
- What Is Matter? Matter vs. Mass, Explained | Extremetech
- Matter (atoms/molecules) = Mass + volume (in 3D space)
- Mass - Everything but light has mass
- Force = F = ma = mass * acceleration = Newton's Laws of Motion = principle of equal and opposite reactions
- Forces, in turn, arise from interactions with evanescent force carrier particles.
- Photons are the force carrier particles of the electromagnetic field. = massless but affected by gravity, travel at the speed of light (c) (and have momentum)
- Matter gets its mass from interactions with a different field, whose force carrier is called the Higgs boson.
- Momentum = P = mv = mass * velocity
- Mass-energy = E = mc2
= When a particle and its antiparticle meet, their mass is converted into energy and released as light (E ÷ m = c2).
- Matter can neither be created nor destroyed, but matter can be transmuted into energy through a process called annihilation.
- Particles and antiparticles are equal but opposite fluctuations in the same underlying matter field (Quantum field theory).
- protons/antiprotons, electrons/antielectrons(=positrons), neutrons/antineutrons(=photons)
- Dark Matter = weakly interacting massive particles = WIMPs -|- 95% of the Universe's total mass and energy are dark matter and dark energy, respectively.
- MACHOs = Massive compact halo objects
- How Dark Matter Works | HowStuffWorks
- What Is Matter? Matter vs. Mass, Explained | Extremetech
- Automobiles / Cars / Vehicles
- See also: Fuel / Gasoline / Petrol (UK) ...
- See also: Energy
- ICE = internal combustion engine
- 4-strokes = Suck, squeeze, bang/pop, blow/phooey. | The engine sucks in a mixture of fuel and air, then squeezes it together (compresses it), then it burns / explodes that with a bang, and finally it blows out the exhaust.
- EV = Electric Vehicle = BEV = battery-electric vehicle = must be plugged in to charge up
- Hybrid
- EV is more efficient than ICE
- Everything You Need to Know About Hybrid Cars | WIRED
- Mild hybrid = electrical generators (alternators) give some extra assist to a gas-powered engine
- HEV = Hybrid = have both gas engines and electric motors = do not plug in to charge = charged by gas engine and regenerative braking
- PHEV = Plug-in hybrid = have both electric motors and gas engines = very limited range when using only battery
- EREV = extended-range electric vehicle = the battery is usually bigger and the gas engine doesn’t drive the wheels (it just recharges the battery)
- iSeeCars.com - Used Cars for Sale Ranked by Best Deals & Price
- Local Fuel Savings | Department of Energy - Compare the cost of driving a battery electric vehicle (BEV) or a plug-in hybrid electric vehicle (PHEV) to a conventional vehicle (ICE) where you live.
- Bad Science
- Calculators
- Calculators.org | Physics Calculators Guide: 204 Classical Mechanics Physics Calculators - Thanks to Jasmine Dyoco for recommending this site.
- GoodCalculators.com | Tax, Finance, HR, Mathematics, Engineering - Thanks to Andrew Stacy for recommending this site.
- Construction - Building
- Concrete = stones + sand + cement (= the binder) + water
- Engineers Create Zero Carbon Cement That Could Rewrite Course of Concrete and Steel
- Carbon-Negative Concrete | Carbicrete - replacing cement with steel slag = replacing cement completely = green concrete
- Could concrete offer a surprising climate solution? - BBC Reel
- FastCompany
- Cement is a climate nightmare. Here's how one Boston startup is elimin
- Why biocement could become America's next big bumper crop
- Concrete is terrible for the environment. These alternatives could help.
- Ancient Romans inspired the recipe for this self-healing concrete
- Why Martian Concrete Might Be The Best Building Material In The Solar - (S = Sulfur (USA) = Sulphur = brimstone)
- Portland cement = the powdery binder that acts as glue and binds together the other ingredients in concrete.
- This concrete sucks up carbon emissions as it's made. - Solidia
- This Bay Area startup uses rocks to suck carbon out of the air. - Heirloom Carbon
- Seratech - replaces some of the cement with a type of silica that is created with CO2 captured directly from factory ducts.
- Blue Planet Systems - diverts CO2 from power plants then using it to manufacture aggregates for concrete.
- Brimstone - uses calcium silicate rocks, which are 200 times more abundant than limestone.
- LC3 – Limestone Calcined Clay Cement
- Sustainable Cement - FastCompany
- "The built environment generates around 40% of global CO2 emissions. Cement, alone, is responsible for around 8% of emissions. (By comparison, the airline industry accounts for between 2% and 3% of global emissions.)"
- Instead of Portland cement, Partanna uses a proprietary mix of materials, including brine, the salty water that’s a byproduct when desalination plants make drinking water from seawater. (Brine is normally dumped back in the ocean, which can harm marine life.) The company also uses byproducts from the steel industry.
- These startups are trying to reduce concrete's carbon footprint
- Partanna | Carbon Negative Concrete
- Central Concrete Supply, your bay area concrete supplier
- CarbonCure's Sustainable Concrete Solution - Concrete Technology Reducing Carbon Impact
- Dimensions
- Discovery Channel Online
- DiscoveryChannel.ca
- Graphene | What is graphene? | ExtremeTech | The word “graphene” is sometimes used interchangeably with the term “carbon nanotubes” or CNTs.
CNTs are exactly what they sound like: sheets of graphene that have been rolled up into a nano-scale tube. The walls of the tube are a single atom thick, but the tube overall is more stable and less reactive with other substances than regular, linear graphene..jpg)
- Electromagnetic Spectrum - PDF
- Elements - Periodic Table
- Energy / Fuel / Power
- See also: Vehicles
- Alternaitves: hydro-electricity, hydrocarbon (natural gas, gasoline, diesel, oil), solar, wind power, wave power, tidal power, battery, ...
- Hydrogen energy
- The Norwegian Company Blamed for California’s Hydrogen Car Woes | WIRED
- equipment failures
- hydrogen fuel for cars is becoming more difficult to obtain
- hydrogen fueling stations experience frequent downtime
- hydrogen vehicle infrastructure is expensive
- hydrogen vehicle infrastructure requires enormous amounts of maintenance - not only for the refueling facilities, but also for the vehicles themselves, relative to internal combustion engines or batteries
- shrapnel has been found inside the fueling stations - parts of the fueling apparatus were routinely exploding, spraying debris inside the station box
- it’s dangerous work - working with high-pressure gases and the potential for explosions
- California has pivoted to building hydrogen fuel infrastructure for heavy-duty vehicles like trucks and buses - (not the passenger market)
- Financial Post
- The anti-Tesla: Ballard bets the day has finally come for tech Elon Musk called 'mind-bogglingly stupid' | Financial Post
- Nuclear energy - Fision, Fusion
- Wind
- How Antimatter Spacecraft Will Work | HowStuffWorks
- How Warp Speed Works | HowStuffWorks
- EnviroLink Network - The online environmental community
- Exploratorium: the museum of science, art and human perception. (SF, CA)
- Futurithmic
- How Stuff Works
- IQTest.com
- Math
- MathCamps Resources - Thanks to Stacy Maxton for recommending this site.
- Science & Technology Lesson Plans - Thanks to Stacy Maxton for recommending this site.
- Brilliant | Learn interactively
- NASA
- Navigation & Maps ...
- Paleontology Without Walls
- Relativity / Time/Space/Acceleration/Mass/Gravity / spacetime
- Can our brains see the fourth dimension? | HowStuffWorks
- The General Relativity Rabbit Hole: Unraveling Space, Time and the Fourth Dimension - CNET
- General Relativity Explained simply & visually - YouTube
- Black Holes
- Book review: Carlo Rovelli's 'White Holes' : NPR
- White Holes: Inside the Horizon review – Carlo Rovelli turns time on its head | Science and nature books | The Guardian - a book for the layperson
- White Holes - The Guardian Bookshop - £12.74 - published by Allen Lane
- White Holes by Carlo Rovelli | Penguin Random House Canada - CA$36
- Quantum Physics
- See also: Computers ...
- What Physicists Have Been Missing - Nautilus - New theory reconciles gravity and quantum physics.
- Quantum time flip makes light move simultaneously forward and backward in time | Live Science
- Schrödinger's cat - Wikipedia
- Real-Life Schrödinger's Cats Probe the Boundary of the Quantum World
- You can think of this like a coin being flipped - while spinning in the air, it is potentially both heads or tails at the same time, but when you look at it after it’s landed, it can be only one or the other.
- What Is Quantum Computing? The Complete WIRED Guide | WIRED
- Big Think - Smarter, Faster
- Understanding Time Travel and Quantum Physics for Anyone: A Guide to Enjoying Sci-Fi Movies and Shows | by e-Guide | Feb, 2023 | Medium
- What Is Quantum Entanglement? Quantum Entanglement Explained in Simple Terms | Caltech Science Exchange
- Quantum Physics Isn't as Weird as You Think. It's Weirder - Scientific American
- SciVee | Make Your Research Known
- Star Trek
- Star Trek
- Star Trek: WWW
- How Warp Speed Works | HowStuffWorks
- Star Trek is science fiction
- Star Wars is science fantasy
- STEM-Works - Science, Technology, Math & Engineering Resources for Kids - Thanks to Kathleen Carter for recommending this site.
- Time-Space - See Relativity
- Water
- MIT Scientists Turn Seawater to Drinking Water With the Push of a Button
- Low-Cost Gel Film Can Pluck Drinking Water From Desert Air - UT News
- Atmospheric water generator - Wikipedia
- Why can't we manufacture water? | HowStuffWorks
- Spanish engineers extract drinking water from thin air | Reuters
- Tsunami Products - atmospheric water generators made in USA
- Fog harvesting | Climate Technology Centre & Network
- AWG Technology Archives - Drinkableair Technologies
- Drupps | We reduce water footprints through airborne water recovery
- Can China control the weather? | HowStuffWorks
