Wikipedia:Reference desk/Archives/Science/March 2013

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March 1

Wikipedia:Reference_desk/Archives/Science/2013 March 1

1. Error correction for analog signals
2. When dimensional analysis fails
3. The right citation for the Rayleigh scattering' equation？
4. Orbital mechanics
5. carbol
6. Most peaceful hominid
7. Calculating the day of conception
8. Room-sealed gas fire in chimney?
9. Longest lived known species of single-celled organism
10. Stupid idea about using Kickstarter to fund building a nuclear power station
11. Geranium care

March 2

Wikipedia:Reference_desk/Archives/Science/2013 March 2

1. Analytical mechanics for Russian meteorite
2. EMP
3. Force carrier particles in a black hole
4. LCD panel colours from the side
5. how practical are diy 3d laser scanners for specific industrial applicaitons?
6. Pump & water question

March 3

Wikipedia:Reference_desk/Archives/Science/2013 March 3

1. Bell's inequality
2. How accurately can we predict the properties of an element and its compound by trends from other elements of a series? How to prove it?
3. magnets strength
4. "This machine destroys EVERYTHING"
5. How long will a brass key retain functionality if used as a doorknob?
6. followup aerodynamics question
7. can you talk about this inflatable glider:
8. How to tell type 1 diabetes from type 2 ?

March 4

Wikipedia:Reference_desk/Archives/Science/2013 March 4

1. where does dried water (molecules) go to?
2. Self-defense question
3. HIV/AIDS deaths
4. Color reproduction
5. Ground penetrating radar and sink holes
6. Does Helium-2 jump off the ledge, or is it pushed?

March 5

Wikipedia:Reference_desk/Archives/Science/2013 March 5

1. Does drinking water right after a meal makes us fatter?
2. Are there any research about compounds of francium?
3. Unknown elements in the universe?
4. Top and Tail trains - how can both locomotives be helping?
5. Technical side of feeding electricity into the grid

March 6

Wikipedia:Reference_desk/Archives/Science/2013 March 6

1. Silent Supernovae
2. Big Bang and light
3. Some questions about the Universe
4. Statistics of hysterectomies
5. Prove relation
6. Reverse osmosis semipermeable membranes
7. Meteor fragments and aircraft
8. Film problems
9. Genetic disorders that come out due to inbreeding.
10. Jumping from a airplane with wingtip sails

March 7

Wikipedia:Reference_desk/Archives/Science/2013 March 7

1. could you compare a hot air balloon with a plane and helicopter?
2. Mean from a wavefunction
3. Hydrogen solubility in copper
4. Growth between 18 and 24
5. Plane lens?
6. Russian MBT Designs
7. Filter paper to concentrate interesting things for microscope viewing?
8. Regulatory genes that account for monocot physiology
9. Flirting
10. Psycho-acoustics

March 8

Wikipedia:Reference_desk/Archives/Science/2013 March 8

1. Radiative transport?
2. Mixing chemicals
3. A biological question about myself
4. the human singing voice - effects of age
5. Does the concept of a "quantum speed" make any sense?
6. Something about coelomates
7. The solubility of francium hydroxide: is it OR?
8. Cinnamon Wattle
9. specilization of the cell wall of epethilia
10. Why azane, not nitrane?
11. Weird chemistry dream: The scent of a proton
12. caffeine
13. Adding water causes liquid soap to gel

March 9

Wikipedia:Reference_desk/Archives/Science/2013 March 9

1. Why do ceiling and walls get darker except for the corners
2. science writing
3. Glomerular Pore Radius
4. Eggs and potatoes
5. Does vitamin D insufficiency known as a potential Obesity cause?
6. what is Nec?
7. How can we predict properties of an element and its compounds when that element is not available or too unstable to experiment?
8. Planck derived units
9. The Answer to "Relaxing Voices"
10. Venus flytrap and meteors

March 10

Wikipedia:Reference_desk/Archives/Science/2013 March 10

1. Social interaction and levels of cognitive activity
2. Can plants grow on lunar soil given enough water and air?
3. What is happening here?
4. inactive ingredients (excipients) in prescription and otc drugs
5. Terms in QSAR / medicinal chemistry
6. science so far outside experience / experiments that no one bothers

March 11

Wikipedia:Reference_desk/Archives/Science/2013 March 11

1. Why does water spray out of a tap quicker if you almost completely cover it with your thumb?
2. Catalan Talgo
3. Cosmic ray
4. Chemical egg
5. What are these lights?
6. Freezing point
7. Missing quantity
8. productivity of 120 hour weeks
9. Reference material for physics/chemistry of vegetables
10. hydraulic
11. BFKP
12. Is the panda the only herbivorous carnivoran?

March 12

Wikipedia:Reference_desk/Archives/Science/2013 March 12

1. Why light does not hurt us
2. Why is milk homogenised?
3. Re: Relativistic Baseball
4. why do optics use IR and not UV?
5. Species Identifcation..
6. How much nucleus/nuclei are present in the eggs of birds such as hen? What is the structure of those big cells?
7. Use of laxatives in Anorexia/Bulimia
8. Scissors VS Paper
9. Energy
10. Black hole
11. Comparison of lander speeds
12. Scientific method and primitive inventions

March 13

Wikipedia:Reference_desk/Archives/Science/2013 March 13

1. Vaccinations and antibiotics
2. Is the dust produced from ultrasonic humidifiers bad for the lungs?
3. S-phone
4. Identification of mushrooms in potting soil
5. Some topics
6. Pictures
7. "Neanderthals' large eyes 'caused their demise'"
8. What if we didn't react to the Common Cold?
9. quadrupole of CO2, N2 etc
10. Guaiphenesin
11. Toxicity of Bakelite in my old camera collection
12. When did humans know Sun was a star like other stars in sky?
13. Colossal multirotor

March 14

Wikipedia:Reference_desk/Archives/Science/2013 March 14

1. Piston bow
2. Galactan and raffinose
3. The most boring question about boiling ever. Again.
4. What biological mechanisms regulate a bird's weight ?
5. anatomy
6. electro chemical cell
7. Ozone Silver Tarnish
8. Sodium percarbonate (uncoated)
9. Gas giant, brown dwarf, red dwarf size versus mass plot
10. Iodine and hydrogen peroxide as antiseptics
11. Health food science.

March 15

Wikipedia:Reference_desk/Archives/Science/2013 March 15

1. How did people thousands of years ago know that fruits and vegetables are healthy?
2. Dense ceramics
3. CPAPs and habituation
4. Invention?
5. Extremely curious about boats, buoyancy, metacentres, etc..
6. Allergic donated organs

March 16

Wikipedia:Reference_desk/Archives/Science/2013 March 16

1. Jet streams
2. The Nose Knows?
3. Double-fuselage aircraft
4. Radioactive sound
5. different sexual responses in women
6. Headphone socket problem
7. Runny nose / stuffy nose
8. Thick rotor blades
9. Line of sight to the sun

March 17

Wikipedia:Reference_desk/Archives/Science/2013 March 17

1. Holograms
2. Would methane hydrate extraction spill significant amounts of methane into the atmosphere?
3. Russian M4 Parka
4. The god particle
5. Charge Selectivity of Glomerular Barrier in Nephritis

March 18

Wikipedia:Reference_desk/Archives/Science/2013 March 18

1. Positive charge on flying insects?
2. interstellar Bomb
3. suicide by hanging
4. Heat flow
5. Drug Interaction
6. A few questions regarding atomic energy levels (1&2) and orbitals (1)
7. Dr Anna L
8. Amount of dissolved salts in a solution
9. Dollar bills and a reflecting telescope.
10. Neutron instability - magnetic field effect
11. Data on the number of books published annually in the world, 1950 and 2012
12. Can the energy needed for interstellar travel be obtained from Earth?

March 19

Wikipedia:Reference_desk/Archives/Science/2013 March 19

1. Why will tidal interaction destroy planet's orbits
2. If Mercury had a substantial atmosphere
3. V-22 Osprey
4. Fever
5. Bomb shelters
6. Force field implementation
7. Hydrogen Peroxide
8. if hair would grou at the expansion rate of cancer cell
9. What is the Palacozoic?
10. New glasses every two years?
11. Effect of Acetone on ABS
12. 3D Printing your own UAV - how far are 3D printers from this capability?

March 20

Wikipedia:Reference_desk/Archives/Science/2013 March 20

1. Two CFL bulbs on same line
2. Panstarrs help for tonight?
3. The Second Law Of Thermodynamics
4. what are these 2 chemical bonds?
5. Question about DC current
6. Tasked with getting a digital copy from a cassette tape
7. Botany - A wonderful Gothic flower !
8. Buying a small amount of food-grade HCl
9. twin paradox - calculating how many years difference

March 21

Wikipedia:Reference_desk/Archives/Science/2013 March 21

1. Timetravel
2. Age of the universe
3. C/2013_A1 collision effects
4. new space program
5. Calanus
6. Laser light polarization in laser cutting
7. Neaspora in cattle
8. How's this animal called?
9. Why faces matter?
10. Scientifically Determining One's Relatives
11. Can a chimpanzee give birth to a human baby?

March 22

Wikipedia:Reference_desk/Archives/Science/2013 March 22

1. Cruel Nazi research
2. Electrical circuit that is 10 light minutes in length
3. Recognizing Spider
4. How do the first individual of a new species find mate?
5. Urination!
6. skin

March 23

Wikipedia:Reference_desk/Archives/Science/2013 March 23

1. Resistance of wire
2. exploitation of natural resources on the moon
3. how can ghosts and other magical creatures walk through walls but not fall through the floor
4. About animals' tolerance of g-force
5. quadriplegic pregnancies and childbirth
6. Do it yourself soil test
7. Trawling vs gillnetting
8. Coke in space
9. Easier to track horizontal lines than vertical lines?

March 24

Wikipedia:Reference_desk/Archives/Science/2013 March 24

1. how oblong could a planet be. could it be shaped like a tic-tac?
2. Scientific
3. Visual acuity
4. Voyager
5. Suckermouth catfish
6. Why do we get toothache?
7. Tree identification

March 25

Wikipedia:Reference_desk/Archives/Science/2013 March 25

1. Electron deficient nomenclature
2. Interstellar probe, part 2
3. Is there a matter without any energy or any energy without its origin from matter?
4. centripetal force in a simple pendulum
5. Copper Acetate
6. "Tanking" and electric car
7. Titration dilemma
8. Dredging

March 26

Wikipedia:Reference_desk/Archives/Science/2013 March 26

1. recycled paper
2. Chemical reaction and water vapor related questions
3. Why does light follow straight line?
4. Relative speed thought experiment
5. Product of two scalars
6. men body hair
7. whales

March 27

Wikipedia:Reference_desk/Archives/Science/2013 March 27

1. Are there any solvent of cyanoacrylate that does not dissolve polystyrene?
2. Flatulence
3. Heat released or absorbed in a reaction
4. Car battery chargers with different amperages, what's the point?
5. W boson in a hypothetical particle accelerator
6. The relation between atoms' kinetic energy and the energy levels of their electrons upon excitation
7. Spacetime
8. Detonators

March 28

Wikipedia:Reference_desk/Archives/Science/2013 March 28

1. Silver Sulfide Decomposes At Boiling Point?
2. Water and pressure related questions
3. Why do we use the word 'infinity' in the definition of potential energy?
4. How close must two particles meet for annihilation to take place?
5. Flowing electrons
6. Google
7. How do certain foods interfere with Levothyroxine?
8. What lifeform can regenerate the fastest?

March 29

Wikipedia:Reference_desk/Archives/Science/2013 March 29

1. Does Navier-Stokes work for solids?
2. Ethical obligation of professional scientists toward open accountability
3. Freak event

March 30

Wikipedia:Reference_desk/Archives/Science/2013 March 30

1. Medical procedure and patients' gender
2. Proton current
3. Law of accelerating returns
4. Largest science
5. thermodynamics
6. What speed is needed so I'm always at the same time on the earth?
7. Prominent science
8. Co-transport... again

March 31

Wikipedia:Reference_desk/Archives/Science/2013 March 31

1. Best way to reproduce phone static sounds immediately before hanging up?
2. Rape and appearance
3. give complete description of law of symmetry in solid state
4. What is the lettering on centimetre cubes in meteorite photography?
5. Calcium supplements