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Wikipedia:Reference desk/Archives/Science/April 2016

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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.



April 1

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Wikipedia:Reference_desk/Archives/Science/2016 April 1

  1. are we inside a black hole?
  2. Hearing loss from music performance
  3. Nuclear renewable energy
  4. Radium mixed with uranium
  5. True or false? "Winter ice maximums in the arctic are relatively unchanged. Summer minimums are lower."

April 2

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Wikipedia:Reference_desk/Archives/Science/2016 April 2

  1. Book recommendations on the history of automotive engines
  2. Do bacterium have feelings/aspirations?
  3. Sedan vs. Hatchback
  4. Do we use the calories in alcohol as energy?
  5. Stupid cold fusion questions

April 3

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Wikipedia:Reference_desk/Archives/Science/2016 April 3

  1. Feeding a 5W IR LED
  2. Downloading the Science Wiki

April 4

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Wikipedia:Reference_desk/Archives/Science/2016 April 4

  1. Special relativity. Simultaneity 2
  2. Composition of Antarctic tephra
  3. Shadows
  4. Tigers smarter than lions?

April 5

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Wikipedia:Reference_desk/Archives/Science/2016 April 5

  1. Nuclides undergoing nuclear fission
  2. MHD and nuclear reactors coupling
  3. Arduino: RGB LED lights and Resistors
  4. Solubility
  5. Voltage drop over fully open transistor?
  6. Why is Fresh-water Fishing mostly so poor in Winter? (I'm sure there are exceptions)
  7. How does lactulose cause flatulence ?
  8. Gravity detector
  9. Bacterial victim
  10. Reaction with ice

April 6

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Wikipedia:Reference_desk/Archives/Science/2016 April 6

  1. That automatic camera timer
  2. Harvest energy of downwards escalator
  3. Wind and solar power
  4. Does kosher/halal beef taste different due to drainage of blood?
  5. Does it make sense to talk about temperature of particles?

April 7

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Wikipedia:Reference_desk/Archives/Science/2016 April 7

  1. Rotating sphere
  2. how is this happening?
  3. Sharks' food choice - surfers vs. scuba divers
  4. Covalent bonds
  5. what % ethylene is polyethylene made of?
  6. How many notes can the average human sing?
  7. How to dissolve the chemical that wrecks circuit traces?
  8. Outpatient procedure complication and mortality rates
  9. Washing clothes

April 8

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Wikipedia:Reference_desk/Archives/Science/2016 April 8

  1. Bread slice missing middle
  2. "Engagement length"
  3. Psychology study that involves perception of pain of another person
  4. Engineering Physics
  5. Do hens ever reach a point where they are passed their egg-laying days?

April 9

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Wikipedia:Reference_desk/Archives/Science/2016 April 9

  1. Source of ammonia in life science lab?
  2. Handedness and cheek concavity
  3. US college admission through standardized tests alone

April 10

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Wikipedia:Reference_desk/Archives/Science/2016 April 10

  1. Special relativity. Simultaneity 2.
  2. Help identify this plant, please
  3. 2016 Mercedes GLE 350d urea injection
  4. Sunlight in June
  5. Criticality and Neutron flux
  6. Why do Electric aircraft have poor thrust to weight ratio?

April 11

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Wikipedia:Reference_desk/Archives/Science/2016 April 11

  1. Heat of deuteration and tritiation reactions
  2. Masturbation and Finasteride
  3. momentum/weight

April 12

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Wikipedia:Reference_desk/Archives/Science/2016 April 12

  1. Methylene diphenyl diisocyanate (MDI)
  2. Sentient nerves
  3. Compression ratio vs displacement
  4. Flamethrowers
  5. Can trisodium phosphate attack or catalyze the hydrolysis of thioethers or thiolic amino acids (cysteine and methionine, etc.) in a frying pan?
  6. calculating the pH-dependent solubility product of phosphate species in the presence of calcium ions
  7. bilateral renal agenesis likelihood an survival
  8. Are there respectable studies that re-cooked starches are lower in glycemic index?
  9. How do babies get good bacteria in their digestive tracts ?
  10. Animals to be identified

April 13

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Wikipedia:Reference_desk/Archives/Science/2016 April 13

  1. Why are flies prevalent in some places and nearly absent from others?
  2. 'Distant antagonistic muscles'
  3. Memory during sleep
  4. Metabolic uncoupling medications?

April 14

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Wikipedia:Reference_desk/Archives/Science/2016 April 14

  1. Specific heat of Pepsi
  2. Drugs to reduce inhibition/anxiety when approaching women

April 15

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Wikipedia:Reference_desk/Archives/Science/2016 April 15

  1. How closely do compression coil springs obey Hooke's law?
  2. How much would it cost to make diamond food and drink vessels?
  3. Number of coils in a torsion spring and its torque
  4. Thermally stable and polymerisation inert agents for OMCR
  5. Biomedical engineer
  6. Geyser (water heater)
  7. States of matter/transfer of energy

April 16

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Wikipedia:Reference_desk/Archives/Science/2016 April 16

  1. Heat of fusion: Cl > Na
  2. "Magnetic in spring temper"

April 17

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Wikipedia:Reference_desk/Archives/Science/2016 April 17

  1. Torch beam question
  2. Limits of human cognition: smallest pixel size/broadest range of colors
  3. Mechanics of human eye

April 18

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Wikipedia:Reference_desk/Archives/Science/2016 April 18

  1. Copper circuit board production
  2. Restart after crash
  3. Continuous flow of electric current
  4. Why aren't there fungi that are sexually transmitted?
  5. Raising chickens
  6. Changing Fields within engineering

April 19

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Wikipedia:Reference_desk/Archives/Science/2016 April 19

  1. Energy/food crises
  2. Body mass v O2
  3. Ionisation enthalpy
  4. DSP price and capability?
  5. bone breakage and calcium loss
  6. Why do Neisseria gonorrheae and Chlamydia trachomatis infect together?
  7. Camera to detect dampness ?
  8. What line coding do modern harddiscs use?
  9. U.K. Mental health care system
  10. Is there a *guaranteed* way to ensure that a person who already got an orchiectomy *doesn't* have *any* extra testicles?

April 20

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Wikipedia:Reference_desk/Archives/Science/2016 April 20

  1. Why did "clean coal" turn out to be so slow and expensive to develop?
  2. Pot seasoning
  3. Salt and sweating

April 21

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Wikipedia:Reference_desk/Archives/Science/2016 April 21

  1. Big Bang-- free lunch?
  2. Do we know how much speed can have voyage in large scale structure?
  3. Pathfinder question(s)
  4. Does gravity slow down time sundial clocks?
  5. Canadian geese that travel in pairs
  6. Seismology patterns today
  7. Classical momentum problem
  8. If a person who got an orchiectomy has an extra testicle (with an epididymis), then can this person's vas deferens recanalize and restore fertility?
  9. What's with the red displays in front of buses now appearing in NYC?
  10. Two Nostril questions
  11. Will everything be the same as today some day in the future?

April 22

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Wikipedia:Reference_desk/Archives/Science/2016 April 22

  1. Special relativity. Simultaneity 3
  2. Flu shot...
  3. Can thinking about sex reduce pain?
  4. First device to produce non-static electricity
  5. Contractile vacuole in Paramecium.
  6. It's not the amps that kills you, it's the power

April 23

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Wikipedia:Reference_desk/Archives/Science/2016 April 23

  1. Meaning of Berl. Ber.
  2. How can I get a copy of a paper that does not appear to be available anywhere online?
  3. Salts
  4. Leyden jar
  5. Who was it?
  6. Overload question
  7. Do ostriches ever fledge?
  8. Stellar classification

April 24

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Wikipedia:Reference_desk/Archives/Science/2016 April 24

  1. SETI not successful at finding extraterrestrial intelligence

April 25

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Wikipedia:Reference_desk/Archives/Science/2016 April 25

  1. Why do we sometime listen a sharp beep sound for some period of time?
  2. Could it be that a person can stop his pulse or is it fake?
  3. Trying to identify a berry
  4. Eye damage due to eye exams
  5. Painting the Moon

April 26

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Wikipedia:Reference_desk/Archives/Science/2016 April 26

  1. Incremental cost of ice drilling
  2. mastoids
  3. Volume expansion or contraction for mixing two solutions
  4. Phase-transition of water: Supercritical --> solid?
  5. Reusing lunar rovers

April 27

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Wikipedia:Reference_desk/Archives/Science/2016 April 27

  1. What is the most time which recorded about human being without sleeping?
  2. Why do transmission substations gets overheated during black outs?
  3. Can playing too much on the keyboard induce bodily injuries?
  4. Top bottom wing(s) of a plane
  5. Absence of Nipple development - Medical term?

April 28

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Wikipedia:Reference_desk/Archives/Science/2016 April 28

  1. Is it posssible to push in and pull out a hoop in womb, so that liquid can cover an object demi-spherically?
  2. Is it possible to make chemical reaction, so that equal amount of material can make one-to-one-to-one correspondence?
  3. Locust
  4. Dowsing
  5. Remembering numbers
  6. Acne faces
  7. Ayrton fan

April 29

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Wikipedia:Reference_desk/Archives/Science/2016 April 29

  1. question regarding phsyics
  2. Burning quartz glass
  3. Bilbana
  4. Magnetic field dependence on recording material?
  5. How did the Amazon Reef go undiscovered for so long ?
  6. Adding water to aquifers
  7. Shepherd's rose identification

April 30

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Wikipedia:Reference_desk/Archives/Science/2016 April 30

  1. Can gum chewing remove necessity of ordinary food?
  2. Time Travelling
  3. Nitrogen ice density
  4. Quark Flavour Change
  5. Sector mass spectrometers
  6. Solar ionising radiation shielding
  7. Spring stream in Georgia
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