Show more
Avis boosted

The following pic was publish for the 1st time in the *Google-plus* Mathematics community in
Nov 19, 2015. Please enjoy & be happy, everybody!

Avis boosted

It's known that a cube can be made of 5 tetrahedra: *1 regular tetrahedron* at the center, plus *4 trirectangular tetrahedra* (*trt*) glued to the 4 faces of the former.
If the edge of the cube be 2, the edges of the *regular tetrahedron* (in the interior) will have length = 2.sqrt(2) & its volume will be 8/3. Now, the *trt* has the same base as a face of the reg. tetrahedron & 1/2 its altitude, so its volume is 4/3. Together:
8/3 (reg. tetrah.) + 4. 4/3 (trt's)= 24/3 = 8 (volume of the cube)

Avis boosted

This is an oldie, a *compound* of *2 irregular dodecahedra*.
Please be well & happy, everybody!

Avis boosted

when you get bored but all you have is memes to entertain you, but that still isn't enough so you combine memes to make the ultimate meme youtube.com/watch?v=Y5tjtUFL0j

Avis boosted
Avis boosted

@1stCareBear mostly manga. Can’t say I have a favorite series anymore. Still love a good story

@kaburi Looks like something I would try. What's it taste like? Interested

Avis boosted

Every time I buy this tea I giggle like a schoolgirl

Avis boosted
@PussySlayer @judgedread chrome removed extension sideload last year though. you have to run in dev mode and bypass all of the built-in safeties like sandboxing and site isolation.
Avis boosted

... can anyone tell me why i've started reharmonizing electric avenue?

Avis boosted

This is a very elegant solid obtained from a "polychoron" in 4 dimensions (a **358 proh** as a Jonathan Bowers' acrostic abbreviated name); but it is a good polyhedron in its own right in 3 dimensions: [F= 256; V= 192; E= 480; genus: g= 17] [E+2=482(-F-V)=34=2g] I offer 2 views of the animal, which is a **discosi-hexapentacontahedron** (256 faces) with symmetry **Oh** (**octahedral complete**, the same of the cube); faces are of no less than 13 different types; please be happy, everybody!..

@isaacc cool 1940, by a Helmutt somebody. Um, geometry? Forgive me, math isn't one of my strong subjects.

Avis boosted

The pic today is of a handsome solid by the not easy name of *rhombic diskaiheptacontahedron* (72 faces, all *rhombi* of 2 kinds, 18 narrow ones (dark brown) & 54 wide ones (light brown); the face vector of the 'animal' is [V=74, F=72, E=144] and *symmetry* is *3-fold dihedral* with *vertical reflection* - *D3d* with Rv.
Please be happy you all & enjoy being alive!

Avis boosted
Show more
mastodon.cloud

Everyone is welcome as long as you follow our code of conduct! Thank you. Mastodon.cloud is maintained by Sujitech, LLC.