Science Library - free educational site


Welcome to! We love science and mathematics, and believe that fun and learning do not live at different addresses.

This is a free website, created by science teachers, and website professionals, for the purpose of celebrating humankind's greatest invention: SCIENCE!

The site is for everyone: students, teachers, university wannabe nerds and the general public. It is packed full of articles for every age group, and every level of science learning.

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We also have a website dedicated to environmental issues: Umwelt.Science, which is in English and German.

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Andrew Bone, editor

Latest Item on Science Library

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Waves and Oscillations

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Test your knowledge

Question: If the universe expands forever, the CBR (cosmic background radiation) will:

Check your answer and try the full quiz on this subject: Quiz Challenge

Go to the article about: Cosmology

Subject of the Week


Science resources on Games, puzzles, enigmas, internet resources, science fiction and fact, the weird and the wonderful things about the natural world. Have fun while learning Science with


Great Scientists

Jim Hansen

b. 1941

Jim Hansen, b. 1941, NASA GISS director, atmospheric physicist, author and environment activist.

Jim Hansen, b. 1941, atmospheric physicist and climatologist

Quote of the day...

Sean remembered Karl Schwarzshild's notes he was carrying. "Could I suggest calling it 'General Relativity and the Field Theory'?"
"Good. Catchy. How does it end?" asked Einstein.
"Like all generals' theories - in a big bang."
"Nein, nein. No big bang. I vant grand epic version of zer kosmos. It might start mit ein big bang promotional trailer, but I prefer a slow, agonising ending to zer universe. Due to consumption. Much more zer melodrammatic."
"That plot has been flogged a bit in opera, hasn't it?"
"You zink vee need zomzing new?"
"How about 'onwards forever'?"
"A bit socialistic. Not really in vogue. "

A Term a Day:


[ Physics : Units and Measures]

An S.I. unit of distance. Equal to the distance light travels through a vacuum in one second: 3.0 x 108 m, or 300 thousand kilometres.

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