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December 1

Wikipedia:Reference_desk/Archives/Science/2023 December 1

1. AC vs refrigerator
2. Blueshift
3. Longest earthquake?

December 2

Wikipedia:Reference_desk/Archives/Science/2023 December 2

1. Lucky charm in cockpit
2. Carl Sagan and Stephen Hawking

December 3

Wikipedia:Reference_desk/Archives/Science/2023 December 3

1. Locating pre-clovis sites
2. Huygens probe

December 4

Wikipedia:Reference_desk/Archives/Science/2023 December 4

1. Mothball smell
2. Colors: What's unique in our planet, that lets us see this photon as yellow, rather than redshifted or blueshifted as seen by another galaxy's inhabitants?
3. Phase diagrams of the noble gases

December 6

Wikipedia:Reference_desk/Archives/Science/2023 December 6

1. Mixing foods into poison
2. Bird head movements
3. Glacier models

December 7

Wikipedia:Reference_desk/Archives/Science/2023 December 7

1. "I'm Julian and this is..."
2. Atmospheric pressure changes and water boiling

December 8

Wikipedia:Reference_desk/Archives/Science/2023 December 8

1. Bee in balloon
2. Cylinder capacity
3. A space probe to move Asteroid Apophis in 2029?

December 9

Wikipedia:Reference_desk/Archives/Science/2023 December 9

1. Evolutionary adaptation time and survival
2. Coumaric

December 10

Wikipedia:Reference_desk/Archives/Science/2023 December 10

1. Why is the top quark more massive than the Higgs boson?
2. Tadpoles that never grew up
3. Can stratospheric water vapour be measured through ice cores?

December 11

Wikipedia:Reference_desk/Archives/Science/2023 December 11

1. What's the product of a collision between a neutrino and an anti-neutrino, when their combined energy is not sufficient for creating the Z boson's rest mass?
2. IQ Bell Curve

December 12

Wikipedia:Reference_desk/Archives/Science/2023 December 12

1. How old is a molecule of water
2. Railroad question
3. UK metric system

December 13

Wikipedia:Reference_desk/Archives/Science/2023 December 13

1. twins and paternity tests

December 14

Wikipedia:Reference_desk/Archives/Science/2023 December 14

1. Hippo in the sky
2. Niagara Falls through a straw

December 15

Wikipedia:Reference_desk/Archives/Science/2023 December 15

1. Biology -- corrections

December 16

Wikipedia:Reference_desk/Archives/Science/2023 December 16

1. Tree canopy formations

December 18

Wikipedia:Reference_desk/Archives/Science/2023 December 18

1. Organ pipe

December 19

Wikipedia:Reference_desk/Archives/Science/2023 December 19

1. Pi
2. Why is argininosuccinic acid a basic amino acid?

December 20

Wikipedia:Reference_desk/Archives/Science/2023 December 20

1. Control of mitochondrial gene expression
2. Odd-indexed chemical element stability
3. Fractions

December 21

Wikipedia:Reference_desk/Archives/Science/2023 December 21

1. Why the gravitational constant is the physical constant which is the hardest to measure?

December 22

Wikipedia:Reference_desk/Archives/Science/2023 December 22

1. Bamboo that blossoms once every 130 years

December 23

Wikipedia:Reference_desk/Archives/Science/2023 December 23

1. Is producing tetraploid human embryo possible?
2. Current dhole population?

December 24

Wikipedia:Reference_desk/Archives/Science/2023 December 24

1. Which pure metal is more prone to corrosion in air: magnesium or samarium?
2. Etymology of hydrogen
3. Does calculating the (upper bound of) neutrino mass, rely (also) on the mass energy equivalence?

December 25

Wikipedia:Reference_desk/Archives/Science/2023 December 25

1. Replacing a dishwasher

December 26

Wikipedia:Reference_desk/Archives/Science/2023 December 26

1. Why so many unpublished studies?
2. max use temperature in Ar/N2 > max use temperature in vacuum

December 27

Wikipedia:Reference_desk/Archives/Science/2023 December 27

1. Is it possible that europium is more unstable than bismuth?
2. Electron capture vs. beta plus decay
3. UK metric system (update)
4. Last passenger
5. Where was the camera on the Apollo lunar lander?

December 28

Wikipedia:Reference_desk/Archives/Science/2023 December 28

1. density of mercury

December 29

Wikipedia:Reference_desk/Archives/Science/2023 December 29

1. Why the IPK must be stored in air?
2. Allele order in genotype
3. Pi
4. Digging to the other side of the world
5. Eternal return

December 30

Wikipedia:Reference_desk/Archives/Science/2023 December 30

1. gallium and carbon
2. The forces acting on my cell phone
3. Wisconsinite barn owls

December 31

Wikipedia:Reference_desk/Archives/Science/2023 December 31

1. Last year Q - Giant prokaryotes' strangeness
2. US metric units