Cost of Oxygen

In one day a human being breaths oxygen equivalent to 3 cylinders. Each oxygen cylinder costs Rs 700.00, without subsidy.

So in one day one uses Oxygen worth Rs 2,100.00 and for full year it is

Rs 7,66,500.00. And if consider average life span of 65 years; the cost of Oxygen we use becomes staggering amount of Rs 500,00,000. 00 or Rs 50 millions. All this OXYGEN is derived free of cost from surrounding trees.

Very few people look at a tree as a RESOURCE and there is rampant tree cutting going on everywhere which must stop.

Do give it a thought, please.

Traffic lights

Uni-Signal Traffic light

Uni signal here is saying, that we have been using round traffic lights for ages now, with only the red-amber-green-colors for aid. How about prepping the system and broadening the spectrum of usage (by colorblind people) and change the shape of the lights! Triangle-Red-Stop, Circle-Amber-Stay, Rectangle-Green-Go! If nothing else, it looks swanky and now we can teach tiny-tots shapes and colors in one go!

Hourglass Traffic Light

Sand Glass concept illustrates the remaining time before the light changes by showing dropping pixels like a real hourglass.