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Wikipedia:Reference desk/Archives/Science/October 2021

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Welcome to the Wikipedia Science Reference Desk Archives
The page you are currently viewing is a monthly archive index. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages.



October 1

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Wikipedia:Reference_desk/Archives/Science/2021 October 1

  1. Spark in a flame.
  2. Skybridge apartments
  3. Why do Step up transformer used in transmission lines if it decreases the current ?
  4. Sugar in textured vegetable protein

October 2

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Wikipedia:Reference_desk/Archives/Science/2021 October 2

  1. Volumes of non-ideal solutions and thermodynamic activity
  2. Washed out colors in videos on Ryzen 7 5700U
  3. What does a changing magnetic field mean?
  4. Chances Hawaii will be destroyed by volcano?

October 3

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Wikipedia:Reference_desk/Archives/Science/2021 October 3

  1. Do plants sleep under UV lamps?
  2. Relative volatility for ternary mixtures
  3. Are N95 disposable respirators thicker than KN-95 ones?

October 4

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Wikipedia:Reference_desk/Archives/Science/2021 October 4

  1. How can a archaeologist tell whether dinosaur is carnivorous or herbivores?
  2. What is it?
  3. Is the fuel used for the Space Shuttle Challenger still used today?

October 5

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Wikipedia:Reference_desk/Archives/Science/2021 October 5

  1. Physics
  2. Why doesn't water fill the container if I do this?

October 7

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Wikipedia:Reference_desk/Archives/Science/2021 October 7

  1. What is the pH of bad motel soap?
  2. Adam's Apple in Animals (specifically Great Apes)?

October 8

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Wikipedia:Reference_desk/Archives/Science/2021 October 8

  1. Why there is no "t" in this power formulae?
  2. Ancestry genetics history of Turkmens & Circassians
  3. Six bulbs of 60W each

October 9

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Wikipedia:Reference_desk/Archives/Science/2021 October 9

  1. Cloning

October 10

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Wikipedia:Reference_desk/Archives/Science/2021 October 10

  1. What can I add to vinegar to make a paste out it?
  2. Is it possible to see valence band under microscope when reverse bias done?

October 11

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Wikipedia:Reference_desk/Archives/Science/2021 October 11

  1. Suspicious entry in List of S-phrases
  2. Reusable crew capsules

October 12

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Wikipedia:Reference_desk/Archives/Science/2021 October 12

  1. Electromagnet: Loops vs current

October 13

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Wikipedia:Reference_desk/Archives/Science/2021 October 13

  1. fenilbeta
  2. Regarding reverse current after zener breakdown
  3. Swimfins' drag

October 14

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Wikipedia:Reference_desk/Archives/Science/2021 October 14

  1. New Shepard flight profile

October 15

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Wikipedia:Reference_desk/Archives/Science/2021 October 15

  1. Why plotting graph of voltage vs time instead of current vs time in Alternating current?
  2. Why is the Bee Hummingbird considered a dinasour?
  3. According to biological evolution, was humanity the result of incest?
  4. No widely available outdoors PCR test in NYC?
  5. Agricultural science

October 16

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Wikipedia:Reference_desk/Archives/Science/2021 October 16

  1. Are eggs created in the body of birds by stem cells?
  2. SI unit in Electro chemistry
  3. Anti-Stokes %.
  4. Plant identification

October 17

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Wikipedia:Reference_desk/Archives/Science/2021 October 17

  1. How a bird touching two wires would electrocute it?

October 18

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Wikipedia:Reference_desk/Archives/Science/2021 October 18

  1. Inconsistency on Tesla Coil harming humans
  2. Switching from some genes to different ones as the organism matures

October 19

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Wikipedia:Reference_desk/Archives/Science/2021 October 19

  1. What's the cause of short circuit in this circuit?
  2. Particle creation

October 20

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Wikipedia:Reference_desk/Archives/Science/2021 October 20

  1. Various types of honey
  2. How to know if a certain food contans caffeine (or any similar substance?
  3. Article Cited by Anti-Vaxxers as Evidence COVID-19 Vaccines Are Not Effective.

October 21

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Wikipedia:Reference_desk/Archives/Science/2021 October 21

  1. Why Lights go dimmer even current increases?
  2. Do cetaceans hear in the air
  3. Industries that need electrical power just for part of the day?
  4. Doctor House and Bipolarism
  5. Thermodynamics question

October 22

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Wikipedia:Reference_desk/Archives/Science/2021 October 22

  1. Calculating the apparant location of the Moon(altitude/azimuth)
  2. Risk decrease of masks

October 23

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Wikipedia:Reference_desk/Archives/Science/2021 October 23

  1. Question on Brush in DC motors.
  2. Why does LiDAR have the ability to see depth through mirrors?

October 24

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Wikipedia:Reference_desk/Archives/Science/2021 October 24

  1. Anti-Stokes %.
  2. Total volume of human population
  3. Bacterium lactis

October 25

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Wikipedia:Reference_desk/Archives/Science/2021 October 25

  1. Insect identification

October 26

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Wikipedia:Reference_desk/Archives/Science/2021 October 26

  1. Why do radio still need power if antenna providing it?
  2. Mushroom identification
  3. What's the most practical solution if a future virus or coronastrain needs something around N99?
  4. "Relationship of eaten and eater"
  5. Radiation on Ganymede

October 27

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Wikipedia:Reference_desk/Archives/Science/2021 October 27

  1. Taxon presentation

October 28

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Wikipedia:Reference_desk/Archives/Science/2021 October 28

  1. Plants: why are there no red flowers at Arctic latitudes?
  2. Space shuttle - why didn't it use only Solid Rocket Boosters?
  3. How to get parrot to fly?
  4. Lawless nature
  5. Anaphylaxis biochemistry

October 29

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Wikipedia:Reference_desk/Archives/Science/2021 October 29

  1. Afterglow lifetime change
  2. Sequenced inoculation
  3. Reduction potential
  4. Sound in non-expanding universe
  5. Calculating sidereal time

October 30

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Wikipedia:Reference_desk/Archives/Science/2021 October 30

  1. Analog to digital conversion process
  2. Can non lipid ointments diffuse into the skin?
  3. Drag on Satellites
  4. Grinding plant-parts with oils

October 31

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Wikipedia:Reference_desk/Archives/Science/2021 October 31

  1. If I mimic some person's voice, am I matching his frequency of sound wave or wavelength of sound wave?