Jump to content

Wikipedia:Reference desk/Archives/Science/April 2009

Add links
From Wikipedia, the free encyclopedia
<< Mar | Science desk | May >>
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

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 1

  1. Artificial nectar
  2. cell division
  3. What came first, the chicken or the egg?
  4. Squirrel monkey behaviour
  5. Solar Eclipse
  6. evolution or creation
  7. Hot water for drinking
  8. schrodinger's time independent equation
  9. Genetics Question
  10. An extraordinary delusion
  11. Nicotine concentrations of cigars?
  12. Chlorine gas
  13. Adding impedances
  14. Ancestry
  15. Strength of human hair
  16. Does studying actually improve IQ scores?

April 2

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 2

  1. Hominidae?
  2. 5 in one fruit tree
  3. HAMMER DRILL VS IMPACT DRILL
  4. Life Without Plastics Video
  5. Meanings
  6. Diamond Cutting
  7. When a Star Evolves into a Black Hole...
  8. source of dietary cholesteryl esters?
  9. Genius
  10. Abiogenesis vs Evolution

April 3

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 3

  1. Limiting Reagent
  2. What's the deal with black holes and escape velocity?
  3. Generation length and human evolution
  4. Quantummechanical operater
  5. Quantum Mechanics
  6. superconductivity
  7. Capsaicin and squirrels
  8. neuron state during mania
  9. Mike Phelps
  10. pleural tap
  11. Eating feces

April 4

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 4

  1. 1+1
  2. Adapating to running
  3. What's this bug?
  4. origin of multi cellular species
  5. physics

April 5

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 5

  1. Evolution of Wings
  2. Atherosclerosis
  3. Puberty and growth
  4. Foods endemic to the Americas...
  5. Are these droppings?
  6. wathurrrrrrrrrrrrrrrrrrrrrrrrrrrrr
  7. Regurgitation in animals.
  8. Blue water
  9. Light bulb energy
  10. Wet hands and light switches
  11. swelling AROUND the eyes and diabetes
  12. 'Physalis Mottle Virus’

April 6

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 6

  1. Boredom
  2. RNA polymerase
  3. since shorelines are fractal, how are they really (IN FACT) calculated, when we read figures about x miles of shoreline?
  4. Comorbidity of pulmonary and liver diseases
  5. Royal Society of Canada
  6. Reference material for doctors
  7. If Sulforaphane is good for you, is sulphur dioxide beneficial also?
  8. Magnetic flux
  9. Earthquake radius
  10. Article: Science and technology in the United States
  11. A hypermiling question
  12. Centre of gravity
  13. Violet scent
  14. Another probe to Uranus?
  15. Garrison Dam
  16. Fear of Abandoment
  17. Hammer Striking a Nail
  18. Self-induced synesthesia?
  19. Global warming

April 7

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 7

  1. Toads and warts
  2. hearing
  3. Why do massive objects in space don't look like they are moving?
  4. Star Trek - Science or fiction?
  5. Vacuum flask
  6. True area of a country
  7. Relationship between Thermodynamic Entropy and Cosmic Dark Energy?
  8. temperature goes up as you dig down.
  9. Venusian thought experiment
  10. How common is runaway global warming?
  11. why is water transparent and ice white?

April 8

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 8

  1. Make OH Hydroxide
  2. Why does accelerating a charged particle produce radiation?
  3. optical reflection distortion in tempered glass in automotive
  4. could a fast enough solar-powered car catch more sunlight?
  5. why isn't the segway a unicycle?
  6. Quantum harmonic oscillator
  7. Mom's perception
  8. Is it possible to predict an unknown element's attributes?
  9. Alternative engine vehicles
  10. Effect of Centrifugal Force on Oceans
  11. Chemistry and lock, have any relation?
  12. why don't we use the sun as a fusion generator?

April 9

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 9

  1. Ethanol Train
  2. Weird example of relative size
  3. ESP
  4. Coma
  5. Powder coated steel
  6. Space and matter/observable vs actual
  7. Repairing damage to the vocal cords after the removal of a thyroid tumour
  8. Major Histocompatibility Complex molecule
  9. LIFE AND DEATH
  10. Colorado Bug ID
  11. Noisy chalk holders

April 10

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 10

  1. can we get any "object" to anywhere near relativistic speeds?
  2. Ornithosis agent
  3. Limits of curving a ball
  4. Dashboards
  5. are flywheels any easier in space?
  6. Name that UK bird! Orange chest, black head.
  7. Early cyclotron-thing
  8. Need WP:RS on a Common Misconception about Neutron Bombs
  9. Rolling hemispheres and moments of inertia

April 11

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 11

  1. Blowing out a candle
  2. New born animals cute
  3. Physics of "Knowing"
  4. rutherford model
  5. Prilosec as diet drug?
  6. Legality of encryption
  7. Too hungover to masturbate
  8. Identiy this water beetle
  9. Global warming, axial shift, sea level rise, seismic activity, and solar eclipses

April 12

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 12

  1. Moment of Inertia of a Traingle
  2. Area of a Heart
  3. about baby
  4. Transmition Of Aliment
  5. Evolutionary advantage of oral sex, fellatio
  6. Plant growth/death
  7. What bird is this?
  8. What is the name of this bird?
  9. Stability of 3 particles
  10. Begining of time
  11. Pharmacology question - IC50s
  12. Exact burn temperature of skin

April 13

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 13

  1. Non-spectral blueish green
  2. Tsunami in this July 2009
  3. Gossamer Albatross
  4. physics/Crystal growth
  5. Question about magnet
  6. Reasons behind legal drinking age
  7. Rule
  8. How to get a women to cum
  9. Fourth Dimension
  10. double slit diffraction
  11. cars
  12. Pain in sides due to excersize
  13. paternity testing
  14. Constructing 3D Sight
  15. Cont: 4th Dimension and Black Holes
  16. musical plants
  17. RAW MILK and Growing Up with Enzyme Lactase Loss

April 14

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 14

  1. DNA
  2. stars outside the boundaries of their constellation
  3. Are diamonds ionic compounds?
  4. Atropine as anaesthesia pre-med
  5. Separating Water(H2O) and Hydrogen Peroxide(H2O2)
  6. 4th Dimension...again
  7. orion
  8. Muscle pain associated with infection
  9. Dilution
  10. burning of stone
  11. Effects of fasting
  12. Paradox
  13. Mailbox Key question.

April 15

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 15

  1. Congenital absence of appendix
  2. What is a naturally occurring isotope?
  3. Precambrian craton formation
  4. Pharmaceutical naming
  5. resistivity of vacuum
  6. formation of pure alkyl nitrile
  7. Invasive species
  8. Do scientists have to pay to have their work published in a peer-reviewed journal?
  9. Rate Constant, k
  10. Armour made from tantalum-niobium alloy - how effective?
  11. Hair & Facial Hair Question
  12. Calculating Kc equilibrium constant
  13. Hearling loss from high frequencies
  14. honey
  15. Microbial growth media
  16. Very small creatures in my fish tank?
  17. Biological Function of Grief in Humans
  18. Achilles tendon and stairs
  19. Ear canal bandpass

April 16

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 16

  1. Ionic detox
  2. Ideal physical attributes for boxing
  3. Trolley-bus routes
  4. concurrent queues
  5. Paradox in current through vacuum
  6. CO2 production vs Absorbtion
  7. Solar Energy
  8. Lyme disease contraction vs. reporting location
  9. Trip to Mars
  10. We are in a 6000 degree C space cloud?
  11. Ecology book, online source?
  12. Reaction product
  13. Black Desert

April 17

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 17

  1. NIH top 40
  2. Is there another explanation for Black Holes besides being dense matter from which light cannot escape?
  3. Coriolis effect and sniping
  4. How can dumb electrons be so clever?
  5. bodybuilding
  6. Questions on cell size and multicellularity
  7. Bullet into wood
  8. Paradox
  9. positron behavior
  10. Super long leg hair
  11. Redox reactions and Lewis Acids & Bases
  12. Nephilim

April 18

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 18

  1. Coriolis force on a river in the northern hemisphere
  2. Recycling efficiency - plastics vs steel
  3. Power production from sea water by electrolysis process.
  4. Sleep
  5. hiv transmission
  6. Figuring out when a star does heliacal rising
  7. Turning radius of a vehicle
  8. Sedimentary rock, evaporites: How does gypsum end forming a stratum .50m thick?
  9. Lazy smokers

April 19

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 19

  1. Electric field therapy
  2. Viral infection
  3. Photovoltaics and thermodynamics; ie, efficiency vs 'wasted' energy
  4. Energy Saving Lightbulbs
  5. How long do American electric kettles take to boil?
  6. HIV
  7. The iceberg that sunk the Titanic
  8. History of Motion Detection
  9. Cartographic projections & Symmetry
  10. Decay chain
  11. Why does the universe seem to be older than it is?

April 20

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 20

  1. Amino acid properties
  2. Are there any (real) animals that can spit/spray corrosive substances as a defence mechanism?
  3. Kinetic energy of gases
  4. Azimuth sweep angle?
  5. Infinite speed and perception
  6. Scooter electric motors
  7. ctrl+f If You Can't Find It
  8. disappearance of gills in higher vertebrates and evolution of lungs (comparison with embryonic tadpole -> frog transition)
  9. Witnessing evolution
  10. Quantum bits at the macro level

April 21

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 21

  1. Bacteria passed on at birth: what about cloning?
  2. Columbus's New World "nightingale"
  3. Gut flora
  4. diatom isolation
  5. gear
  6. DIN & VDI
  7. Ethernet 1000BASE-SX physical limitations
  8. solvent information missing from free radical addition
  9. DNA sequencing
  10. viruses
  11. Increase in rolling resistance on a wet road?
  12. The Beauty of the Universe
  13. how much biological output is produced (by either weight or volume) daily by all of the world's population combined?
  14. Cancer
  15. Hiding from thermographic camera view by covering oneself in thick mud from head to toe...
  16. Gaussian random motion
  17. Lewis dot and cross diagrams
  18. Bruce Lee martial arts glowing light energy field
  19. POSTED THIS QUESTION ON THE MATHAMATICS PAGE AND WAS SUGGESTED I POST IT HERE

April 22

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 22

  1. GLOBAL WARMING
  2. B cell activation
  3. Speed of Light and electricity
  4. wikipedia article on E.D.T.A.[ethylene diamine tetra acetic acid]
  5. How to insulate an old home ?
  6. Minimum particle separation - where to start?
  7. Toilet germs
  8. vinegar
  9. Birds collecting things

April 23

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 23

  1. NRPG ?
  2. Light through optical centre
  3. Bonjela and the news
  4. What could a super-large telescope array see?
  5. The subjective experience of being blind
  6. Why do people collect things / derive satisfaction from completing sets of objects?
  7. Brain food
  8. Amygdala
  9. Minimum amount of fuel to circumnavigate the globe
  10. Slit-Like Iris
  11. current procedure terminology - has it changed over the years?

April 24

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 24

  1. Blowing bubbles
  2. Function of globose
  3. Water consumption while dehydrated
  4. Lost in the woods
  5. SALTWATER FISHES
  6. the earth
  7. Name
  8. The first link between protein and gene
  9. Differential Capacitive sensors
  10. Eggplant
  11. "Female" DNA
  12. Canis lilliputia and canis brobdingnag

April 25

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 25

  1. how much
  2. Line spectrum question
  3. A seeming discrepency has been puzzling me all day about Le Chatelier's principle and Solubility equilibrium
  4. will 1,3,5-trimethoxybenzene react with hydrochloric acid? (Or even base?!)
  5. Removing the Water from A Solution
  6. could someone melt antarctica?
  7. Where is going the oceanic crust of the North American Plate?
  8. Male/female ratio
  9. Social Science/Sociological Question: What is the difference between Modernity and the Enlightenment?
  10. Storage of medicines
  11. Expansion of the universe
  12. acid

April 26

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 26

  1. radical addition of alkynes
  2. Enhancement by implants
  3. Earthrise on the Moon
  4. SN 2005gj
  5. Rust spreads by catalysis or mechanical reasons.
  6. On high-speed tallow candles
  7. Battery Disposal
  8. Sod
  9. The physics of water filling into a depression

April 27

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 27

  1. repelling the earth
  2. Steam Table & Value Calculation???
  3. Chameleons Changing Colors As Camouflage?
  4. What's so special about swine flu?
  5. Drooling
  6. Blue precipitate in beta mercaptoethanol (ca. 43% commercial solution)
  7. what is the overarching function of the arcuate fibers?
  8. Right Hand Rule and Help with Magnetism
  9. Measuring the temp of the Sun
  10. The sound that sports arena spotlights make when switched on

April 28

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 28

  1. Microgravity and Moon missions
  2. Dogs with "hair" instead of "fur"
  3. the sun's surface
  4. Homo floresiensis and microcephaly
  5. blank (colored) skew-T
  6. viruses again
  7. anatomy of urinary system
  8. Labratory construction
  9. Wearing Black on a hot day
  10. Environmental Science
  11. drinking hot liquid through a straw
  12. Bleeding from the eyes
  13. Testing for 2009 swine flu
  14. Elastic Potential energy
  15. Electrodynamic potential energy

April 29

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 29

  1. Image changing material
  2. analytical lab
  3. Fluorescent Mountain Dew
  4. Hydrogen bonds
  5. Swine influenza
  6. firing an SCR
  7. 1918 Spanish flu mortality
  8. effects of caffeine
  9. Body size
  10. Question
  11. Hedge plants

April 30

[edit]

Wikipedia:Reference_desk/Archives/Science/2009 April 30

  1. Envying the Chimps
  2. Smoothing capacitor advice
  3. Bird fart
  4. Volume of Ideal Gas at Absolute Zero
  5. ALIENS
  6. Chemistry A-Level problem
  7. convergent evolution
  8. What are the products of the reaction of sodium with Sand
  9. Photon
  10. Karrick Process
  11. Central metal ions and EDTA
  12. Swine Flu
  13. Type of coffee
  14. why do Ferrel cells exist?
  15. Elements that have no application?
  16. Are household bleach or disinfectant effective at killing viruses on hard surfaces?
Retrieved from "https://en.wikipedia.org/w/index.php?title=Wikipedia:Reference_desk/Archives/Science/April_2009&oldid=1073341331"