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.

Is an orange a berry?

As the interfertility of oranges and other citrus has produced numerous hybrids, bud unions, and cultivars, their taxonomy is fairly controversial, confusing or inconsistent. The fruit of any citrus tree is considered a hesperidium (a kind of modified berry) because it has numerous seeds, is fleshy and soft, derives

What was Jackie Kennedy’s maiden name?

Jacqueline Bouvier Kennedy Onassis was born on July 28, 1929, in Southampton, New York. Her father, John Bouvier, was a wealthy New York stockbroker of French Catholic descent, and her mother, Janet, was an accomplished equestrienne of Irish Catholic heritage.

Who was the first woman inducted into the Rock and Roll Hall of Fame?

Aretha Franklin (vocals, piano; born March 25, 1942)Aretha Franklin is the “Queen of Soul” and the first woman inducted into the Rock and Roll Hall of Fame. She is a singer of great passion and control whose finest recordings define … Aretha Franklin Highlights.

Who are francophones?

The adjective francophone means “French-speaking”, typically as primary language, whether referring to individuals, groups, or places. The word is also often used as a noun to describe a natively French-speaking person.

Who invented the first vending machine?

The first modern coin-operated vending machines were introduced in London in the United Kingdom in the early 1880s, dispensing post cards. The machine was invented by Percival Everitt in 1883 and soon became a widespread feature at railway stations and post offices, dispensing envelopes, postcards and notepaper.

What did Dumbledore teach before he became headmaster?

Dumbledore is an expert at Transfiguration too, having taught the subject before becoming headmaster.

How old do you have to be to be elected president?

Article 2 of the Constitution of the United States of America outlines the qualifications for becoming president. To even qualify to run for office, a candidate must be 35 years or older. The candidate must also be a natural born United States citizen.