John Leslie (physicist) FAQs: Facts, Rumors, Birthdate, Net Worth, Sexual Orientation and much more!

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Who is John Leslie? Biography, gossip, facts?



Sir John Leslie (10 April 1766 - 3 November 1832) was a Scottish mathematician and physicist best remembered for his research into heat. Leslie gave the first modern account of capillary action in 1802 and froze water using an air-pump in 1810 the first artificial production of ice. In 1804 he experimented with radiant heat using a cubical vessel filled with boiling water. One side of the cube is composed of highly polished metal two of dull metal and one side painted black.

How does John Leslie look like? How did John Leslie look like young?

John Leslie
This is how John Leslie looks like. The photo hopefully gives you an impression of John Leslie's look, life and work.
Photo by: Ambroise Tardieu (1788-1841), License: CC-PD-Mark, http://commons.wikimedia.org/wiki/File:John_Leslie_(1766-1832)_by_Ambroise_Tardieu.jpg

When is John Leslie's birthday?


John Leslie was born on the , which was a Thursday. John Leslie's next birthday would be in 118 days (would be turning 260years old then).

How old would John Leslie be today?


Today, John Leslie would be 259 years old. To be more precise, John Leslie would be 94538 days old or 2268912 hours.

Are there any books, DVDs or other memorabilia of John Leslie? Is there a John Leslie action figure?


We would think so. You can find a collection of items related to John Leslie right here.


What was John Leslie's zodiac sign?


John Leslie's zodiac sign was Aries.
The ruling planet of Aries is Mars. Therefore, lucky days were Tuesdays and lucky numbers were: 9, 18, 27, 36, 45, 54, 63 and 72. Scarlet and Red were John Leslie's lucky colors. Typical positive character traits of Aries include: Spontaneity, Brazenness, Action-orientation and Openness. Negative character traits could be: Impatience, Impetuousness, Foolhardiness, Selfishness and Jealousy.

Was John Leslie gay or straight?


Many people enjoy sharing rumors about the sexuality and sexual orientation of celebrities. We don't know for a fact whether John Leslie was gay, bisexual or straight. However, feel free to tell us what you think! Vote by clicking below.
0% of all voters think that John Leslie was gay (homosexual), 0% voted for straight (heterosexual), and 0% like to think that John Leslie was actually bisexual.


Is John Leslie still alive? Are there any death rumors?


Unfortunately no, John Leslie is not alive anymore. The death rumors are true.

How old was John Leslie when he/she died?


John Leslie was 66 years old when he/she died.

Was John Leslie hot or not?


Well, that is up to you to decide! Click the "HOT"-Button if you think that John Leslie was hot, or click "NOT" if you don't think so.
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0% of all voters think that John Leslie was hot, 0% voted for "Not Hot".

When did John Leslie die? How long ago was that?


John Leslie died on the 3rd of November 1832, which was a Saturday. The tragic death occurred 193 years ago.

Do you have a photo of John Leslie?

John Leslie
There you go. This is a photo of John Leslie or something related.
Photo by: John Leslie, License: CC-PD-Mark, http://commons.wikimedia.org/wiki/File:Leslie_John_apparatus_1813.jpg

Who are similar scientists to John Leslie?


Walter Boas, Udai Singh (engineer), Arthur A. Dole, Denise Sheer and Martin Davis are scientists that are similar to John Leslie. Click on their names to check out their FAQs.

What is John Leslie doing now?


As mentioned above, John Leslie died 193 years ago. Feel free to add stories and questions about John Leslie's life as well as your comments below.

Did John Leslie do drugs? Did John Leslie smoke cigarettes or weed?


It is no secret that many celebrities have been caught with illegal drugs in the past. Some even openly admit their drug usuage. Do you think that John Leslie did smoke cigarettes, weed or marijuhana? Or did John Leslie do steroids, coke or even stronger drugs such as heroin? Tell us your opinion below.
regular
recreational
never
0% of the voters think that John Leslie did do drugs regularly, 0% assume that John Leslie did take drugs recreationally and 0% are convinced that John Leslie has never tried drugs before.

Are there any photos of John Leslie's hairstyle or shirtless?


There might be. But unfortunately we currently cannot access them from our system. We are working hard to fill that gap though, check back in tomorrow!

What is John Leslie's net worth in 2025? How much does John Leslie earn?


According to various sources, John Leslie's net worth has grown significantly in 2025. However, the numbers vary depending on the source. If you have current knowledge about John Leslie's net worth, please feel free to share the information below.
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1000000
As of today, we do not have any current numbers about John Leslie's net worth in 2025 in our database. If you know more or want to take an educated guess, please feel free to do so above.