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All questions asked by Rino

List all solved & unsolved questions asked by Rino

$ker(T)^{bot} = overline{im(T^*)}$ if $T$ is a linear operator between Hilbert spaces

1   Mathematics Asked on 12/13/2021

adjoint operators  functional analysis  hilbert spaces 

When and how was it discovered that the sun was in different positions depending upon longitude?

1   History of Science and Mathematics Asked on 09/02/2021

archaeoastronomy  navigation  time 

When was the earliest usage of diagrams to represent set relations?

0   History of Science and Mathematics Asked on 09/02/2021

biographical details  mathematics  philosophy of science 

Has any large group of people used a base other than 10, 20 and 60 for ordinary purposes?

1   History of Science and Mathematics Asked on 09/02/2021

mathematics  notation  number theory 

How well was alcoholism understood at a time when people drank chronically?

0   History of Science and Mathematics Asked on 09/02/2021

medicine 

What was the first "scientific", non-photographic depiction of Earth as seen from outside of Earth?

1   History of Science and Mathematics Asked on 09/02/2021

16th century  17th century  18th century  19th century  discoveries 

Was Herschel ever inspired to write music through his astronomy research?

1   History of Science and Mathematics Asked on 09/02/2021

astronomy 

What did the Soviets do with German scientists after WWII?

4   History of Science and Mathematics Asked on 09/02/2021

cold war  nazi germany  scientists  soviet union 

When did the people start using the portraits of the two Euclids interchangeably?

2   History of Science and Mathematics Asked on 09/02/2021

debunking  depiction of scientists  euclid  mathematicians 

Who really was the first inventor of the laser?

1   History of Science and Mathematics Asked on 09/02/2021

discoveries  photonics  physicists  physics 

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