Bissoy.com
Doctors Medicines MCQs Q&A

When was the toothbrush invented?

When was the toothbrush invented? Correct Answer 1770

The creator of the first mass-produced toothbrush is believed to have been William Addis of England in 1780. Addis had been jailed in 1770 for inciting a riot. In jail, he developed a toothbrush consisting of an animal bone and bristles made of pigs' hair that were inserted into drilled holes and held in place by glue. After his release, he started a toothbrush manufacturing company called ADDIS that stayed in his family until 1996 and still manufactures toothbrushes today.

Related Questions

A year ago the price of a toothbrush and the price of a comb were both Tk.50. The price of the toothbrush was increased by 20% while the price of the comb was decreased by 10%.What is the difference in Taka between the current price of the toothbrush and the comb ?
Given below are four jumbled sentences. Out of the given options pick the one that gives their correct order. A. They used thin twigs called chew sticks as tooth cleaners. B. The fuzzy end was rubbed against the teeth to keep them clean. C. These sticks were fuzzy at one end. D. How did people clean their teeth before the toothbrush was invented? 
At a railway station, a tooth seller bought few datuns (wooden toothbrush) at the rate of 6 per Rs. 100. Second time he bought he same number of datuns at rate of 5 per Rs. 100. He mixed both the lots and then sold the datuns at the rate o7  per Rs. 200. In this business he had a loss of Rs. 1320.What are the number of datuns he bought ?
The following items consist of a sentence, parts of which have been jumbled. These parts have been labelled as P, Q, R. and S. You are required to re-arrange the jumbled parts of the sentence and mark your response accordingly. can be invented (P) / it appears (Q) / has been invented (R) / that all that (S) The correct sequence should be
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations is correct. 1. Galileo heard that a Dutch inventor had invented something called a spyglass, but was keeping it a secret. P. One night, he pointed his telescope toward the sky. Q. It could magnify things to make them appear ten times larger than real life.  R. So, he decided to work on one of his own. S. Within 24 hours, he had invented a telescope. 6. He made his first of many space observations.
“Man who invented the hamburger was smart; man who invented the cheeseburger was a genius.”
Under whose leadership was the Genome of Jute invented?
Who invented the microprocessor ?
Logarithm tables were invented by ----
--------- physicist, Gabriel Fahrenheit, invented the mercury thermometer in 1741. (fill in the blanks)