## Planet Icosahedron and Astronomy Stuff

November 19, 2009

I, having nothing of interest, think there are a few links I think you would like:

Planet Icosahedron: Basically, it is like a planet globe, but instead, it is a icosahedron (duh). Anyways, the images for them have been created by the various spacecrafts that have been near the planets. Very neat stuff. (via skepchick)

Can it be? Finally, a visible evidence of dark matter? It is possible, although we have to wait for the results, so don’t get your hopes up. ^_^ (via Cosmic Variance)

Cool astrnomy picture of ISS going in front of the moon. ’nuff said.

Hubble found a large dusty galaxy with an ethereal X (via universe today). Badastrnomy has a detailed analysis of it, if you like those kind of stuffs.

Oh, and the Planetary Society Blog posted this cool interaction between the moons of Saturn:

## Euclid’s The Elements: Preposition One-Really Fun Math Puzzle

May 3, 2009

This is the nth edition of *drum rolls* Pop Quizz! A quizz in which the answers are not obvious and if it is obvious, and you get it wrong, you are rebuked at!!!

Occasionally, I will occasionally ask a question, and the reader will answer them! For every wrong answer, I will consider one of your comments a spam. Ha! See how you like that suckers! (I am kidding, of course) Sometimes, a wrong answer won’t invite rage, some really obvious one will, and you will be called an idiot if you can’t answer the obvious one. In fact, I may have to make an extra page on my blog for the lists of idiots.

Anyways, once upon a short time ago, I was reading Euclid’s The Elements, which is basically the geometry book to rule them all. First, it defines various terms, and go over postulates. Then it goes through geometric proofs, each different one called prepostitions. Well, the first one I think is a really neat geometry problem. It goes like this:

3. On a given straight line to construct an equilateral triangle.

Meaning, considering you have a line AB, make a triangle ABC with all sides equal. Sounds hard? Well, if you hear the clue, you migh go “OOOOHHHhhhhh!” If not, well… shame on you, mate. ^_^ Read the rest of this entry »

## Cool Geometry and Topology

August 26, 2008

I found a serious of cool math videos about cool geometry and topology stuffs (thanks to A Blog Around the Clock). Also, it has stuffs about the fourth dimension, ooohh… mysterious. Well, the fourth dimension is actually only in our minds, an abstraction. It exists mathematically, but we don’t know if it exists in the real world. And no, space and time doesn’t count because we are talking of spatial dimension. All we can know about an nth dimension above. Another one I found really cool is the imaginary number, and that one is surprising. I never realized the beautiful kind of things that could be created with them. Here is the link to the webpage of the video, and I posted a video myself on this blog. (Darn! How do I eliminate the sidebar?!) Anyways, whoever made this made a heck of a job and I congratulate them! One of the most awesome math videos ever.