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If you’re the kind who liked to watch Discovery Channel or National Geographic now and then, then you’ll probably love ScienceHack.

It’s a collection of short videos which explain interesting things in various subjects - physics, chemistry, space, psychology, nature, mathematics and many more. The strength of the site lies in its veracity - they claim on their homepage that “every science video on ScienceHack is screened by a scientist to verify its accuracy and quality”. Add to that the short length of the videos and you have small bites of knowledge you can comfortably chew whenever you feel like it.

Here are some videos to get you started right away:

Physics

• The effect of resonance on rice
• Measuring lightning
• Parallel universes
• Infrared: More than your eyes can see

Chemistry

• Demonstration of a nuclear chain reaction
• Sodium Polyacrylate
• Electroplating

Space

• Black hole destroying a star
• Zero gravity training

Psychology

• Milgram’s Obedience Experiment
• Implicit Association Test

Robotics

• ASIMO’s fancy footwork
• Shape-shifting robotic forms from magnetic swarm

Biology

• Bionic contact lenses
• HIV Replication 3D Animation

How It Is Made

• How It’s Made: Bow
• Bubble Gum - How it is made

Mathematics

• The Mobius strip
• Ancient Egyptian Binary Mathematics

Civil Engineering

• How to Dismantle a Bridge
• Building Stonehenge

Computer Science

• How does a web application works?
• Luis von Ahn on CAPTCHA

Green Energy

• Solar Tower Technology
• From Waste To Watts: Biofuel Bonanza

Nature

• Wolves vs. Grizzly Bears
• The Liger