Friday 25 September 2015

Underware Cables

A planetary system of undersea cables stretches across oceans, seas, and around continents… 550,000 miles (885,139.2 kilometers) of fiber optic communications cables that power the internet and more. The first was laid in the 1850s between Newfoundland and Ireland to transmit telegraph messages, “reducing the communication time between North America and Europe from ten days – the time it took to deliver a message by ship – to a matter of minutes.”
Now over 300 submarine cables carry a staggering 99% of all international data.This video map from Business Insider animates these vital connections around the world.

Stone Skipping Record

Ever skipped a stone more than once? The current record is 88 skips with one throw!
What is the science behind this?
Find out and share it with us via a comment

Friday 18 September 2015

Cool YouTube channels

SciShow- SciShow is a YouTube channel that discusses science news, history and concepts. With equal parts skepticism and enthusiasm, they go a little deeper on popular science topics.

CrashCourse- CrashCourse provides educational videos aimed at secondary students. Playlists for past courses include Astronomy. World History, Biology, Literature, Ecology, Chemistry, Psychology and US History.

A working scale model of Escher’s 1961 Waterfall?




Escher, Waterfall 1961




HOW WAS IT DONE?