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Wikipedia:Reference desk/Archives/Science/April 2012

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April 1

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Wikipedia:Reference_desk/Archives/Science/2012 April 1

  1. exponential power of 2 and number of ancestors 30 generations ago
  2. fine structure
  3. In Situ Generation of Acid Catalyst in Esterification
  4. Regarding Common Emitter BJT configuration.
  5. Canning timing
  6. Metallicity of stars
  7. Sound c ards
  8. Dogs who howl at the phone
  9. Subjective biking effort

April 2

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Wikipedia:Reference_desk/Archives/Science/2012 April 2

  1. What is the effective population size of the United Kingdom?
  2. Glow leak
  3. Load in motor and current
  4. fine -structure

April 3

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Wikipedia:Reference_desk/Archives/Science/2012 April 3

  1. Gravity
  2. Underwater hand stand
  3. Sprained pelvises
  4. Pencil sharpener
  5. Male emotion
  6. Is the outside of single cell algae lipophilic or hydrophilic?
  7. A formal symbol for a postulated absolute rest frame?

April 4

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Wikipedia:Reference_desk/Archives/Science/2012 April 4

  1. Black hole gravity
  2. Why is pressure a scalar?
  3. there are 4 kinds of topology in Set{1,2},and 29 in Set{1,2,3}, is exist a Formula in a Set {1,2,3,4,5,6...n}?
  4. How is heat energy converted to mass?
  5. can some women not orgasm from intercourse, but only clitorally
  6. Live engineering status for UK TV and radio broadcast towers
  7. empty space
  8. hydrocortisone
  9. Frank Sherwood Rowland

April 5

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Wikipedia:Reference_desk/Archives/Science/2012 April 5

  1. Types of copper
  2. volume measurer
  3. retrograde rotation of venus
  4. Escaping from a black hole
  5. Body fat monitor
  6. Caramel Catastrophe!
  7. Instantaneous communication at a distance
  8. Have they ever tried multi-stage balloons?

April 6

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Wikipedia:Reference_desk/Archives/Science/2012 April 6

  1. Dandruff and eyes
  2. Virtual work
  3. Dreams: maker versus watcher
  4. Middle East climate
  5. Vitamin B12 absorption
  6. Uniqueness of the attractor for Earth's climate
  7. Explaining light
  8. Escape velocity

April 7

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Wikipedia:Reference_desk/Archives/Science/2012 April 7

  1. How much extreme weather damage can the world economy take?
  2. Male sexual activity and cognitive performance
  3. Physics LC circuit
  4. Electronics on board Apollo 11 spacecraft
  5. Using tachyons to blast something out of a black hole
  6. Radicals and VSEPR

April 8

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Wikipedia:Reference_desk/Archives/Science/2012 April 8

  1. Illumination in lumen additive or parallel?
  2. Strange zoo bird
  3. Octane rating of jet fuel
  4. Do different chicken breeds have different tastes?
  5. mercury spectrum
  6. sodium spectrum
  7. physics
  8. Could Kinect ever come with a force-feedback body suit?
  9. Why can't the Kinect recognize fingers and head movements?
  10. which reaction formula is right?
  11. Mystery bird
  12. calcium metaborate
  13. Why do cows eat grass?
  14. Bayes' theorem in medical diagnostics
  15. Group 14 electronegativities
  16. A few questions from a science fiction author: Lethality of small amounts of high explosives and theoretical weapons systems

April 9

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Wikipedia:Reference_desk/Archives/Science/2012 April 9

  1. low blood pressure and i. v. heroin use
  2. Perfectly elastic collisions for equal masses
  3. CARDIOLOGY
  4. Seahorse gender
  5. white hole

April 10

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Wikipedia:Reference_desk/Archives/Science/2012 April 10

  1. Unknown drug powder ID
  2. postcognition
  3. Could a satellite really pack the energy to knock out the entire US's power grid?
  4. Sexual vs. asexual reproduction vis-a-vis early evolution
  5. What are the colors of human cone cells?
  6. triplicate carbon copies' carbon footprint
  7. Are there more/fewer/equal quantum fluctuations near massive bodies?
  8. Identify the fishes
  9. Jungle versus machete
  10. does cured cyanoacrylate penetrate skin if dissolved in acetone?
  11. Sun dogs
  12. Carnot efficiency
  13. Why the south is hotter?
  14. HCl NaOH titration

April 11

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Wikipedia:Reference_desk/Archives/Science/2012 April 11

  1. why phenolphthalein instead of bromocresol blue
  2. The powder coating process
  3. Impossible colors
  4. Why don't they place neutron absorbants under nuclear reactor cores?
  5. Use of anova/ F-tests with count data
  6. Magnesium citrate
  7. Gauss' principle of least constraint
  8. furnace fumes
  9. science

April 12

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Wikipedia:Reference_desk/Archives/Science/2012 April 12

  1. will aluminum foil scratch a lens or its coating?
  2. Boyle temperature of Argon
  3. unhealthy food combination
  4. Fluid properties of blood
  5. replacing wheels with balls in a car.
  6. What is the expected operating lifetime of a modern coal-fired power station??
  7. Identify rabbit photos
  8. Brodatz texture dataset
  9. The glue binding new and unused staples together. What is it?
  10. how hot does it take for Titan to heat up to completely lose its atmosphere

April 13

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Wikipedia:Reference_desk/Archives/Science/2012 April 13

  1. Fermented milk?
  2. Neurology
  3. Do sensory organs evolve to be too small to have sex with?
  4. Stale Petrol

April 14

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Wikipedia:Reference_desk/Archives/Science/2012 April 14

  1. Difference B IntraCrin & AutoCrin?
  2. Health effects of too much magnesium intake
  3. Atoms in a current
  4. Co-codamol
  5. What is PTH (electronics, resistors)?
  6. PU sections occurence and toxcicity
  7. Pseudo science
  8. Hydrons

April 15

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Wikipedia:Reference_desk/Archives/Science/2012 April 15

  1. What is the big ball on most wheellock pistols?
  2. Can a laptop battery improve?
  3. Physics
  4. GMO Docs
  5. loading dose question

April 16

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Wikipedia:Reference_desk/Archives/Science/2012 April 16

  1. Saving the Titanic
  2. Spartan by Wavefunction Inc.
  3. Consequences of not chewing food properly.
  4. Red leaves
  5. Running at 2000 feet altitude
  6. Owl rotation

April 17

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Wikipedia:Reference_desk/Archives/Science/2012 April 17

  1. obviously pseudoscience that ended up completely right?
  2. Regarding effect of an AC signal on a BJT.
  3. Snow patterns
  4. Viruses/disease symptoms

April 18

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Wikipedia:Reference_desk/Archives/Science/2012 April 18

  1. Identify the monkeys
  2. Which water is better for boiling and drinking, water from toilet tap or water from kitchen tap?
  3. capillary waves
  4. how is this safe
  5. conker tree
  6. preserving seeds
  7. do kids with progeria get very smart very fast

April 19

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Wikipedia:Reference_desk/Archives/Science/2012 April 19

  1. Peat pod fungus
  2. Finland's class size ratios
  3. Tohoku earthquake's shift
  4. If the drag coefficient is not constant then what is the point of the equation?
  5. Fluorine(I)
  6. Difference of diesel, bio-diesel, ethanol, gas and gasoline
  7. Helicopter and aircraft pilots record flying hour holders

April 20

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Wikipedia:Reference_desk/Archives/Science/2012 April 20

  1. Bleach and chlorine
  2. Mechanics problem
  3. Hail
  4. regrading r-e model of a BJT
  5. Environmental effects of a plastic bag ban
  6. How many people alive today were born before the year 1900?
  7. Inside of a hen it's too ... whatever ... to breathe
  8. Does water ice get colder or is it temperature static?
  9. How can Mars acquire to more substantial atmosphere over sun's brightening
  10. Europa's atmosphere
  11. Why Earth dies Mars survives

April 21

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Wikipedia:Reference_desk/Archives/Science/2012 April 21

  1. Is US or UK ahead in commercial transportation fuel synthesis from CO2?
  2. ban all plastic bags ... and then?
  3. Insect ID
  4. ~ Health-Related Questions: For Only Knowledge & Experienced People of Excellence Only ~
  5. Odd tree growth
  6. alternative explanation
  7. Vactrain effects
  8. Biomorph-producing fractal formulas

April 22

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Wikipedia:Reference_desk/Archives/Science/2012 April 22

  1. Caffeine in Nesquik
  2. Flying car
  3. High buoyancy and low drag
  4. Some Science questions
  5. Cholera rates in Kenya

April 23

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Wikipedia:Reference_desk/Archives/Science/2012 April 23

  1. Chemistry/Amylose and amylopectin Determination.
  2. Kills 99 per cent of germs...
  3. Quantum entanglement and kinetic energy
  4. Female scientist question
  5. Population growth vs accelerating returns in technology
  6. Carmine microbial production
  7. Some Biology questions
  8. what is the year old of the donkey when it begin to bray?

April 24

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Wikipedia:Reference_desk/Archives/Science/2012 April 24

  1. Curlews?
  2. M notation in chemical reactions described for rate data
  3. Diamminehydridoboron(0) [BH(NH3)2]
  4. Simplest being to show affection
  5. Hermaphroditism
  6. To become supercentenarian
  7. Photoelectric effect- why Kth shell??
  8. GPS or Glonass which came first
  9. Electric motor and heat
  10. trial
  11. Global warming and Mexico

April 25

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Wikipedia:Reference_desk/Archives/Science/2012 April 25

  1. pH Determination
  2. Chemical kinetics - why no 2nd order reaction data?
  3. Inappropriate paint
  4. europa europa
  5. Bicycle wheel spoke breakage load question

April 26

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Wikipedia:Reference_desk/Archives/Science/2012 April 26

  1. what is dark matter
  2. the source of planets' atmospheres
  3. Electric Field & Electric Force
  4. for how long duration of time the sun was T-tauri star
  5. Blue glow when pulling apart a Band-Aid wrapper?
  6. How do they make large, curved sheets of glass?
  7. Color change

April 27

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Wikipedia:Reference_desk/Archives/Science/2012 April 27

  1. Mean motion orbital resonances discrete?
  2. Monk's hood oil feeling
  3. Molecular sieves
  4. I can't find species "Aphenops cronei" that was mentioned by Dobzhansky
  5. Event horizon of universe
  6. Unranked taxa
  7. Suppose we have a Magic Mosquito Genocide Contraption
  8. Decision-making - Can we actually make decisions?
  9. photoelectric effect - electron from K shell why?
  10. If you were to pick one decade that the telephone became 'mainstream'...
  11. ~ Health-Related Questions: For Only Knowledge & Experienced People of Excellence Only ~ [NOT SLOVED]

April 28

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Wikipedia:Reference_desk/Archives/Science/2012 April 28

  1. The new "Xi_b^*" baryon
  2. What is this black substance ?
  3. Freezing
  4. Permanent marking of stolen clothing
  5. Aquifer drawdown and cloud cover.
  6. sodium metasilicate

April 29

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Wikipedia:Reference_desk/Archives/Science/2012 April 29

  1. How do I mimic static over the cellphone?
  2. A Fibres in Frog Sciatic Nerve
  3. Gravity
  4. Why were the X-15 rocket-powered aircrafts retired?
  5. Preventing water damage when building a building
  6. Niagara falls into dam
  7. What are typical Power capacities for suburban Distribution Substations??98.225.64.151 (talk) 23:13, 29 April 2012 (UTC)
  8. Leftover rabies?

April 30

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Wikipedia:Reference_desk/Archives/Science/2012 April 30

  1. Fibrosis
  2. Kinased oligonucleotides
  3. How many neurons can fire at once?
  4. Hydraulics/Pressure question
  5. fever to being cold
  6. Parasitic pepper twin ?
  7. Engineering at university
  8. highest decibel rating of any fling insect.
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