Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear?
Answer: D
There is no sure date.
Joseph Fry of Bristol is usually credited with the first moulded eating chocolate in 1847, and Cadbury followed in 1849, but the claims are disputed and the earlier history of solid chocolate is not documented.
Please log in or register to report this question.
What did Sir Isaac Newton invent?
Answer: B
Newton invented the reflecting telescope.
He built it in 1668, using a curved mirror instead of a lens to avoid the coloured fringing that refractors suffered. Every large telescope since has used mirrors. The marine chronometer was John Harrison's work.
Please log in or register to report this question.
Which scientist discovered the radioactive element radium?
Answer: D
Marie Curie discovered radium.
She and Pierre isolated it from pitchblende in 1898, along with polonium, having processed tonnes of ore to obtain a fraction of a gram. She won the 1911 Nobel Prize in Chemistry for it.
Please log in or register to report this question.
In which decade was the Internet first implemented?
Answer: C
It was first implemented in the 1960s.
ARPANET's first link, between UCLA and Stanford Research Institute, was made on 29 October 1969. The first message crashed the system after two letters of 'login'.
Please log in or register to report this question.
Who invented Bakelite?
Answer: B
Leo Hendrik Baekeland invented Bakelite.
The Belgian-American chemist made it in 1907 from phenol and formaldehyde - the first wholly synthetic plastic, owing nothing to any natural material. It was hard, heat-resistant and an electrical insulator, and it made the early electrical industry possible.
Please log in or register to report this question.
When was the toothbrush invented?
Answer: A
It was invented in 1770.
William Addis, imprisoned in London for rioting, drilled holes in a bone saved from his meal and set bristles in them. On release he began manufacturing, and the firm bearing his name still exists.
Please log in or register to report this question.
What beverage was invented by Charles Alderton in 1885 in Waco, Texas?
Answer: C
It was Dr Pepper.
Charles Alderton, a pharmacist at Morrison's Old Corner Drug Store in Waco, Texas, mixed it in 1885 - a year before Coca-Cola, making it the oldest major soft drink in the United States.
Please log in or register to report this question.
What drink was invented by Charles Leiper Grigg in 1929?
Answer: A
It was 7-Up.
Charles Leiper Grigg launched it in 1929 as Bib-Label Lithiated Lemon-Lime Soda, which contained lithium citrate. The name was shortened, and the lithium was removed in 1948.
Please log in or register to report this question.
The initials JCB on earth-moving equipment are those of the founder of the company that makes it. What is his name?
Answer: B
He was Joseph Cyril Bamford.
He founded the firm in a lock-up garage at Uttoxeter in 1945, making a tipping trailer from war-surplus steel. JCB went on to invent the backhoe loader, whose shape is now what most people mean by a digger.
Please log in or register to report this question.
For what is Charles Babbage (1792-1871) remembered?
Answer: A
He is remembered for computers.
Charles Babbage designed the Difference Engine and then the Analytical Engine, which had a store, a mill, punched-card input and conditional branching - the essentials of a computer, a century before one was built. Neither was completed in his lifetime.
Please log in or register to report this question.
