When was nitroglycerin invented?

When was nitroglycerin invented?

The Italian chemist Ascanio Sobrero first made nitroglycerin in 1847, by adding glycerol to a mixture of concentrated nitric and sulfuric acids. Sobrero’s face was badly scarred due to an explosion in the 1840s.

What percentage of the human body is water?

By one year of age, that amount drops to about 65%. In adult men, about 60% of their bodies are water. However, fat tissue does not have as much water as lean tissue. In adult women, fat makes up more of the body than men, so they have about 55% of their bodies made of water.

Which planet has the most satellites?

Eight of Jupiter’s moons are regular satellites, with 4 large, spherical moons, and 4 smaller moons that orbit closer to Jupiter. Jupiter has an additional 55 tiny irregular satellites. The planet with the second highest number of moons is Saturn, with 61 moons.

What animal has the shortest gestation period?

The shortest known gestation is that of the Virginian opossum, about 12 days, and the longest that of the Indian elephant, about 22 months.

Why is the Python programming language called Python?

When he began implementing Python, Guido van Rossum was also reading the published scripts from “Monty Python’s Flying Circus”, a BBC comedy series from the 1970s. Van Rossum thought he needed a name that was short, unique, and slightly mysterious, so he decided to call the language Python.

What does it mean when you order a drink neat?

In bartending, the term straight up (or up) refers to an alcoholic drink that is shaken or stirred with ice and then strained and served without ice in a stemmed glass. This is contrasted with a drink served neat – a single, unmixed liquor served without being chilled and without any water, ice, or other mixer.

What day do couples have sex the most on?

Research has determined what day of the year leads to couples having the most sex. As Men’s Health points out, sex toy company Lovehoney polled 2000 people about their sex lives and determined that more couples would be having sex on July 1 than any other day. And to be exact, they’ll most likely be doing at 7:37 p.m.

What were Kleenex tissues originally meant for?

When there was a cotton shortage during World War I, Kimberly-Clark developed a thin, flat cotton substitute that the army tried to use as a filter in gas masks. The war ended before scientists perfected the material for gas masks, so the company redeveloped it to be smoother and softer, then marketed Kleenex as facial tissue instead.