(Source: sandandglass)

(Source: iguanamouth)

Heine-Borel is the kind of theorem that is essential for your life. I mean, you can handle doing grocery shopping without Bolzano-Weierstrass, but you would never succeed without Heine-Borel.

theazerilime:

Rep. Jerry McNerney talking about the Twin-Prime conjecture, because it interests him. 

He has an engineering background with a PhD in Mathematics. 

truebluemeandyou:

DIY Free Printable Science Valentines from Evil Mad Scientist. The ones with equations are from their 2013 collection and symbol Valentines’ cards are from their 2014 collection.

sci-universe:

alternating current/direct current electricity

sci-universe:

alternating current/direct current electricity

(Source: bullit1987)

sixpenceee:

If only everything really complicated was explained this way. 

THE AUTHOR & MORE OF HIS BOOKS

kldzbop:

officialnasa:

kldzbop:

how many star in the sky

Like 7 star

good job nasa keep up the good work