Hold up. Vera C. Rubin Observatory was built at a latitude of 30° South (in Chile). So it means that the great telescope will never be able to see the portions of the sky above 30° North. That's quite sad. I wonder why didn't they build the observatory closer to the equator like in Peru instead?
Doormatty
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2h ago
A bunch of reasons.
Atmospheric stability - The Atacama Desert region is one of the driest places on Earth.
Number of clear nights - Cerro Pachón and nearby peaks offer 300+ clear nights a year
Low light pollution - The area is remote, reducing artificial light glow
Cerro Pachón is also host to other observatories like Gemini South and SOAR.
No such area exists in Peru.
GrandAdmiralCrunch
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2h ago
It was put there because the Atacama Desert in Chile is the clearest dark site in the world. No light pollution and no clouds or haze to get in the way.
The decision to place the LSST on Cerro Pachón follows a two-year campaign of in-depth testing and analysis of the atmospheric conditions and quality of astronomical “seeing” at four sites in Chile, Mexico, and the Canary Islands.
“Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.” Albert Einstein
This article somehow showed up at my feed randomly.
A 17-year-old teen refutes a mathematical conjecture proposed 40 years ago
Hannah Cairo has solved the so-called Mizohata-Takeuchi conjecture, a problem in harmonic analysis closely linked to other central results in the field. This fall, she will begin her doctoral studies at the University of Maryland
In mathematics, the Klein bottle (/ˈklaɪn/) is an example of a non-orientable surface; that is, informally, a one-sided surface which, if traveled upon, could be followed back to the point of origin while flipping the traveler upside down. More formally, the Klein bottle is a two-dimensional manifold on which one cannot define a normal vector at each point that varies continuously over the whole manifold. Other related non-orientable surfaces include the Möbius strip and the real projective plane. While a Möbius strip is a surface with a boundary, a Klein bottle has no boundary. For comparison, a sphere is an orientable surface with no boundary.
The Klein bottle was first described in 1882 by the mathematician Felix Klein.[1] (Wiki)
“Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.” Albert Einstein
The species has been pulling its head out of its ass for a good part of the last 500 years (it is called the Scientific Revolution) and has been doing better and better. To the point that we even have a magic glass in the sky that is letting know stuff like, well, what the gentleman is talking about.
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