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There is an ancient inventio...

There is an ancient invention still used in some parts of the world today that allows people to see through walls. What is it?

Correct answers: 49

The first user who solved this task is Djordje Timotijevic.

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At The Public Pool

The lifeguard told the mother to make her young son stop urinating in the pool.
"Everyone knows," the mother lectured him, "that from time to time, young children will urinate in a pool."
"Oh really?" said the lifeguard, "from the diving board!?!?"

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Robert F. Borkenstein

Died 10 Aug 2002 at age 89 (born 31 Aug 1912).American forensic scientist who was most recognized for his contributions to the understanding and control of alcohol impairment in traffic accidents, and who invented the Breathalyser. He collaborated with Professor R.N. Harger of the Indiana University School of Medicine in the introduction of the Drunkometer, the first instrument for accurate measurement of quantities of alcohol in the blood by breath analysis. Subsequently, he invented the Breathalyzer, an instrument that changed the approach of forensic science and police enforcement in response to drinking-and-driving problems. This innovation enabled traffic enforcement authorities to determine and quantify blood alcohol concentrations with sufficient accuracy to meet the demands of legal evidence.

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