SciShow
How Do We Know the Age of the Universe?
What kinds of tools do astronomers use to calculate the age of the universe, and how can they determine the speed of its expansion?
Domain of Science
How to Read Math
Baffled by equations, well no more! Continue learning at this video's sponsor https://brilliant.org/dos Lots of people find mathematical equations intimidating because they don't make sense. But they are not hard to understand if you...
PBS
Earth Had Rings (and Might Regain Them)
New ReviewPlanet Earth is the jewel of the solar system—the shimmery blue oceans, the verdant green forests, the wispy whimsical cloud formations. Saturn is the only competitor for most gorgeous planet with that giant ring system. Hmm… what if we...
Tumble Science Podcast for Kids
High School Astronomer Uses Math to Find Planets
There is no minimum age for scientific discovery. Young scientists ask questions about topics that have puzzled humans for hundreds of years. This audio story introduces a high school senior who uses math to help astronomers search for...
PBS
How We Know The Earth Is Ancient
In astronomy we talk about billions of years like it’s no big deal. But how can we be sure about timescales so far beyond the capacity for human intuition? Our discovery of what we now call deep time is very recent - as recent as our...
Domain of Science
The Map of Physics
Everything we know about physics - and a few things we don't - in a simple map. If you are interested in buying a print you can buy it as a poster here: North America: https://store.dftba.com/products/map-of-physics-poster Everywhere...
PBS
The Alchemy of Neutron Star Collisions
Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of stars that lived in the ancient universe. In recent...
Domain of Science
Calculus, What Is It Good For?
Explore the meaning of differentiation and integration. A video lesson describes in detail what differentiating and integrating an equation means using the momentum and kinetic energy formulas. Progressing from a linear to a quadratic...