Questions tagged [discoveries]

For questions about the location (in space and time) of scientific discoveries and their historical context.

Use this tag for questions about new scientific discoveries - in contrast to biographical questions, or how theories were developed.

188 questions
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What are some scientific breakthroughs that have been done during jail time?

I am looking for examples of scientific breakthroughs that have been made within the confines of a prison cell.
Franck Dernoncourt
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13
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5 answers

How did prisoners of war discover scientific breakthroughs while interned?

Reading the excellent thread What are some scientific breakthroughs that have been done during jail time?, it stands to reason to ask what are some scientific breakthroughs made by interned prisoners of war, when the author was confined in a POW…
user22
13
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7 answers

Apparently different objects discovered to be the same

To make it more formal, I am looking for striking historical examples of objects or concepts that were well known in a field and perceived as different, but later discovered to be the same. I am interested in how they happen and what impact they…
Conifold
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1 answer

Why were hot-air balloons invented so late?

The first (documented) hot-air balloon was made in the late 18th century. The materials necessary (wood to burn, sheets for balloon) were around for thousands of years. Why didn't anyone think of this invention earlier?
5
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1 answer

When was it found that a function could be decomposed as a sum of even and odd functions?

I'm not sure if it's a good question but I was reading about the decomposition of any function, f(x), as a sum of even and odd functions; f(x) is not an even or odd function. Is it possible to know when this fact (or, theorem?) was discovered and…
PG1995
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3
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1 answer

Invention of Principle of Inclusion-Exclusion

I know the principle of inclusion-exclusion and solved some problems related to this principle but I don't know how this principle was discovered? Whenever I use this principle I was amazed thinking of how the concept of the principle of…
2
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1 answer

How does human design the first ruler?

How and when did we build the first ruler ? I have an hard time figuring how to build something "straight" without having first a "straight" tool. Sure you could just stretch a thread/wire and then cut a wood block to have something ressembling a…
Haiku
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Invention of the SI unit of plane angle:Radian

As I was reading on the topic plane angle then I came across a term radian.Hence I want to know how radians were discovered as well ?
user230507
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What were the precursor works to Copernicus Heliocentrism?

Was Heliocentrism something that exploded with Copernicus seemingly out of nowhere, or were there predecessors, and what were those predecessors? I read somewhere that their might of been versions before Copernicus?
user4281
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