Regular polyhedra | Tessellation | Polyhedra
In spherical geometry, an n-gonal hosohedron is a tessellation of lunes on a spherical surface, such that each lune shares the same two polar opposite vertices. A regular n-gonal hosohedron has Schläfli symbol {2,n}, with each spherical lune having internal angle 2π/nradians (360/n degrees). (Wikipedia).
How to Construct a Dodecahedron
How the greeks constructed the Dodecahedron. Euclids Elements Book 13, Proposition 17. In geometry, a dodecahedron is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron with regular pentagons as faces, which is a Platonic solid. A regular dode
From playlist Platonic Solids
The Holometer: A Fermilab Experiment
Do we live in a two-dimensional hologram? A group of Fermilab scientists has designed an experiment to find out. It’s called the Holometer, and this video gives you a behind-the-scenes look at the device that could change the way we see the universe. Find out more at http://holometer.fnal.
From playlist Detectors and Accelerators
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/q0PF.
From playlist 3D printing
What Are Allotropes of Metalloids and Metals | Properties of Matter | Chemistry | FuseSchool
What Are Allotropes of Metalloids and Metals Learn the basics about allotropes of metalloids and metals, as a part of the overall properties of matter topic. An allotrope is basically a different form of the same element, each with distinct physical and chemical properties. For example
From playlist CHEMISTRY
Pyramid Hologram - How to Make/How it Works with Princess Leia Hologram
Easy to make hologram showing Princess Leia's message from Star Wars IV, a flying pterodactyl and a skull. All you need to make is a 4-sided clear plastic pyramid and a drawing with 4 different views of an image. Some of mine are even animated. Download the animations/images I used in thi
From playlist Currently Popular
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/L5R
From playlist 3D printing
Albert Einstein, Holograms and Quantum Gravity
In the latest campaign to reconcile Einstein’s theory of gravity with quantum mechanics, many physicists are studying how a higher dimensional space that includes gravity arises like a hologram from a lower dimensional particle theory. Read about the second episode of the new season here:
From playlist In Theory
34 Subatomic Stories: Do we live in a holographic universe?
There are many ideas rattling around the theoretical physics community that are a bit outlandish, but one stands out. This is the idea that our universe is actually a hologram. In this episode of Subatomic Stories, Fermilab’s Dr. Don Lincoln sketches out the theory of the holographic uni
From playlist Subatomic Stories