Liquid-Powered Digital Clock

The Mini Hydro Clock is a small clock (about 2.5cm by 5cm) which simply displays the time. No alarm function, no date or calendar information. Just the time.

However, what is interesting is that you can power it with any fluid you like, including water, juice, milk and beer. I imagine that the smell from the milk when it goes off will be pretty nasty though! Considering you can use almost any water-based solution to power the clock without batteries…. you could use urine too!

Source: Geek Alerts

SteriPEN – Portable Water Purifiying Gadget

The SteriPEN is an eco-friendly gadget ideal if you’re travelling to areas with typically unsafe drinking water. The SteriPEN will allow you to refill your water bottles (rather than buy bottles from a shop) and ensure the water is safe before you drink it. The pen uses shortwave ultraviolet light which damages the DNA of bacteria, viruses and protozoa, rendering them harmless. (more…)

Nano-Tech Water Drop Puzzle

The Nano-Tech Water Drop Puzzle is simply a puzzle that cleverly exploits surface tension in water to allow you to use individual water drops instead of marbles or metal bearings in a toy. (more…)

WaterMill: Drinking Water out of thin air!

The WaterMill is an elegant solution for providing pure drinking water, by literally condensing water vapour in the air into an internal chamber. According to the ElementFour website, atmosphere contains between 4g and 25g of water per cubic metre. Of which, the WaterMill can convert between 10 and 40% of that water vapour into drinkable water. (more…)