Thales of Miletus, looking at a lovely day on standing upright stick, invented a method of measuring the height of the pyramids. It can be used and we are measuring the height of various objects. Try to reproduce it on a lovely day.
Thales waited until the shadow of the stick will be equal to its length, and measured the length of the shadow of the pyramid.

In the Chinese book "Sund Shi" (11.) Described by sleigh with a drum to record it. What does it measure?
Distance (whether - Chinese measure of length - HN is equal to one mile).

In 1902, W. Carre invented a "device for slighting the air. Under whatever name he is known now? Airconditioning.

American engineers have patented a method of infinite gotovleniya bread. However, in the opinion of many, in such a grain there is some drawback. Which?
No rump.

American scientists have proposed to judge the internal rennih damage of cargo carried on the eye. This cargo cover special paint containing the additive in the form of microcapsules, in which lies the other paint. Upon impact capsules burst and the dye расте repents. The stronger the attack, the more noticeable spot on the top tance of the goods. Guess what color chosen for capsular dye authors?
Blue - the color of a bruise.

They say that laziness - the engine of progress. Those who were too lazy to revenge, invented a vacuum cleaner, and those who were too lazy to wash, invented a washing machine. Tell me, ca Coy lazy sensor placed on the faucet so that it does not leak?
Heat (and water automatically stops flowing).

Some L. Tsauner invented glasses inflicted on them with an optical grid in the form of radial rays. For work nicks a peaceful profession he is their target? Pastry (to cut the cake on flat pieces).

One day, Charles Babbage found a number of errors in astronomical tables. Low reliability you numerically produced by hand, led him to the idea ... What?
Creating a universal computing machine.