Suspension Bridges from Ancient Times

Inca Grass Bridge [Actual footage starts at 0:20] Meghalaya's Living root bridges

How I started a sanitary napkin revolution!

Don't worry, this is about innovation and philanthropy.

Monkey Intelligence

Is this monkey at the same intelligence level as human's ancestor thousands (or tens of thousands) of years ago? How long ago?

How to walk a 10 feet tall, 5 ton Moai

Don't under estimate the power of human ingenuity.

The first years to walk and talk, the rest of the childhood to stop and shut up

An Amazing Experiment

I invite you to try this. 1. Hold a piece of paper with some written words on it in front of you. Shake the paper horizontally and try to read the words. Can you? 2. Hold the same piece of paper steady in front of you. Turn your head sideways while trying to read the words. Can you? Our vision system is really amazing, isn't it? Source: BBC Prehistoric Autospy Episode 2. (14:30 minutes into the show)