LIFESTRAW – An Emergency Water Filter

If you are a hiker, camper, mountaineer or an adventurer, then this is a must have gadget for you. This award wining gadget called LifeStraw is a perfect life saver in case you are lost in the woods. LifeStraw basically filters contaminated water and gives you 99% bacteria-free water for drinking. The most amazing thing about

How Differential Gear works (BEST Tutorial)

An excellent tutorial from the 1930’s on the principles and development of the Differential Gear. Fast Forward to 1:50 Note: This is a user submitted video under “User Submitted” Category. Although the submitted content is moderated, RealityPod does not guarantee the accuracy of information provided in posts of this particular category.