Wikipedia:Reference desk/Archives/Science/February 2021

= February 1 = Reference_desk/Archives/Science/2021 February 1


 * 1) Stabbing someone in the midst of a heart attack
 * 2) Unlimited bandwith for over-the-air broadcasting
 * 3) Who predicted an Analemma (position of the sun in the sky) before it got photograph in 1990s?

= February 3 = Reference_desk/Archives/Science/2021 February 3


 * 1) Single use plastic

= February 4 = Reference_desk/Archives/Science/2021 February 4


 * 1) drawing planets orbits around earth
 * 2) Vertical bar in chemical formula
 * 3) Cloning using CRISPR/gene editing question
 * 4) Calculating the distance range of commercial over-the-air FM radio stations

= February 5 = Reference_desk/Archives/Science/2021 February 5


 * 1) Substance in cardoon stalk
 * 2) Carbon emission of rail vs air

= February 6 = Reference_desk/Archives/Science/2021 February 6


 * 1) Why would black holes emit Hawking radiation?
 * 2) Melatonin research journal
 * 3) Kiwifruit with hollow or missing core

= February 7 = Reference_desk/Archives/Science/2021 February 7


 * 1) Do Earth observatories better than space telescopes?
 * 2) What is the diagonal line in this satellite image?
 * 3) Americium in smoke detectors

= February 8 = Reference_desk/Archives/Science/2021 February 8


 * 1) A disease once called "alhimenia"

= February 9 = Reference_desk/Archives/Science/2021 February 9


 * 1) How can a ball of glass bounce higher than rubber ball?
 * 2) M's butterfly collection

= February 10 = Reference_desk/Archives/Science/2021 February 10


 * 1) COVID origin

= February 11 = Reference_desk/Archives/Science/2021 February 11


 * 1) photons between quarks in protons, neutrons, and mesons- what energies?
 * 2) Journal of Geoscience Education article

= February 12 = Reference_desk/Archives/Science/2021 February 12


 * 1) Is there a difference in out-of-body experiences based on how they are induced?
 * 2) What rocket did they use for STS-107?
 * 3) What is the difference between Space Shuttle and Space shuttle orbiter?

= February 13 = Reference_desk/Archives/Science/2021 February 13


 * 1) What does  "Transferred to Expedition 14" mean in List of International Space Station expeditions?
 * 2) COVID origin; extra Q
 * 3) COVID-19 vaccines safety

= February 15 = Reference_desk/Archives/Science/2021 February 15


 * 1) Simple glacier models
 * 2) Meteors approaching head-on
 * 3) Why is electrolysis more effective at permanent hair removal than laser hair removal is?

= February 16 = Reference_desk/Archives/Science/2021 February 16


 * 1) Milk questions
 * 2) Transgender hormone therapy stats

= February 17 = Reference_desk/Archives/Science/2021 February 17


 * 1) IQ and narrow-sense heritability question
 * 2) Why don't we develop two visions if we have two eyes?

= February 18 = Reference_desk/Archives/Science/2021 February 18


 * 1) Satanic landing gear???
 * 2) Medical topic: Technical name for this exercise.

= February 19 = Reference_desk/Archives/Science/2021 February 19


 * 1) Chinese first satellite  (Dong Fang Hong I)

= February 21 = Reference_desk/Archives/Science/2021 February 21


 * 1) Where exactly parachute will land during Mars 2020?

= February 22 = Reference_desk/Archives/Science/2021 February 22


 * 1) 50 cal gun and air
 * 2) Blood vessels regenerating
 * 3) RBMK reactor
 * 4) Plant identification requested
 * 5) Shower physics
 * 6) The fraternal birth order effect for male homosexuality: Why didn't evolution select against and weed out this effect?

= February 23 = Reference_desk/Archives/Science/2021 February 23


 * 1) Can you store any arbitrarily large amount of information in a finite space?
 * 2) Perseverance's signal delay
 * 3) What's the difference between an extremely early embryo and a skin cell in terms of genetics, epigenetics, et cetera?

= February 24 = Reference_desk/Archives/Science/2021 February 24


 * 1) Is it night 50% of the time on average everywhere?

= February 25 = Reference_desk/Archives/Science/2021 February 25


 * 1) How much percent General relativity still need to be proven?

= February 27 = Reference_desk/Archives/Science/2021 February 27


 * 1) Detergents

= February 28 = Reference_desk/Archives/Science/2021 February 28


 * 1) Question about a particular deadly condition for old people
 * 2) Quantum Entanglement