“Journey to the Center of the Earth” is a curated collection of articles published by the Smithsonian magazine. As you scroll down the page, you move deeper into the Earth — a thermometer and a depth gauge keep track of how far down the page you’ve scrolled. At each division (surface, crust, mantle, outer core, inner core), you’re given a selection of pieces about that layer as well as quick facts about the materials and physics which can be found at that depth.
It’s a lot to take in, but it’s very interesting!
This infographic by Karl Tate of Space.com gives a conceptual overview of the earliest moments of the Universe.
Or, “What happens when you interpret riddles literally?”.
This is a super-useful tool for quick calculations and graphs. Try entering something like “surface area of sun”, “pi to 100 digits”, “life expectancy france 1910”, or “Who formulated the halting problem?” in the search bar!
This website looks like a regular search engine, but returns facts, figures, and charts, rather than just URLs to other pages.