Wikipedia:Reference desk/Archives/Science/February 2013

= February 1 = Reference_desk/Archives/Science/2013 February 1


 * 1) what's the issue with horsemeat?
 * 2) Gravity waves caused by a relativistic object
 * 3) Coffee and smell
 * 4) Armour and Antiarmour IV
 * 5) Weight of motor
 * 6) Sound, density and bulk modulus in the upper atmosphere
 * 7) SETI

= February 2 = Reference_desk/Archives/Science/2013 February 2


 * 1) 0 displacement photon
 * 2) Grapefruit powder
 * 3) Chemistry question
 * 4) Lime burning
 * 5) Why do tortoises live so long?
 * 6) Invention v/s Discovery
 * 7) SHD distribution on optical high speed networks
 * 8) Thanks
 * 9) Historical election to fellow of RAeS
 * 10) Ground state and vacuum state

= February 3 = Reference_desk/Archives/Science/2013 February 3


 * 1) Gravity in a bounded universe
 * 2) while we're on the subject of turtle evolution
 * 3) Light bulbs.  halogen --> LED
 * 4) Male vs female pain
 * 5) Black holes: Why the most complex objects in the universe?
 * 6) antimatter
 * 7) Chemistry after nuclear decay/transmutation
 * 8) What is this crinkly wood - and why is it so?

= February 4 = Reference_desk/Archives/Science/2013 February 4


 * 1) Acupunture for Cerebral Venous Thrombosis
 * 2) freezing insect eggs?
 * 3) Evolutionary purpose of non-reproductive sex
 * 4) Coffee
 * 5) Twin fingerprints

= February 5 = Reference_desk/Archives/Science/2013 February 5


 * 1) Yellow rain
 * 2) Law of excluded middle, null hypothesis, and disproof of god
 * 3) feeling "surreal" or like the world is a fabrication or a simulation
 * 4) Zycosoil
 * 5) Chelating?
 * 6) Vacuum of space
 * 7) Intermezzo (zolpidem tartrate)
 * 8) microbiology
 * 9) Live double-headed eagles
 * 10) Black sky at night
 * 11) Economic growth, what curve?
 * 12) Burnt stew

= February 6 = Reference_desk/Archives/Science/2013 February 6


 * 1) Law of excluded middle, null hypothesis redux
 * 2) Touch one part of your body, feel it elsewhere
 * 3) single slit - interference in a slit
 * 4) POM application for ethanol
 * 5) pKa-value in the medicine substance articles?
 * 6) Tests on a newborn baby

= February 7 = Reference_desk/Archives/Science/2013 February 7


 * 1) New Horizons photos of Pluto
 * 2) biology
 * 3) Unseen effects on water when going down a drain
 * 4) Should I get the shingles shot?
 * 5) Reventazón River vs. Reventado River in Costa Rica

= February 8 = Reference_desk/Archives/Science/2013 February 8


 * 1) Camera quality as a function of weight
 * 2) Anti-cancer molecule TRAIL
 * 3) MTBE
 * 4) Jupiter and the Romans
 * 5) About isotopes
 * 6) Forms of energy
 * 7) Iranian and Iraqis anti-aircraft air defense
 * 8) Kite with extremely long string
 * 9) Symbol of mass number
 * 10) Why don't the electrons fall into the nucleus?
 * 11) How to freeze water in 5 seconds?
 * 12) Space between atoms
 * 13) DVI and VGA cable
 * 14) Amount of heat input required to cut stainless steel plates

= February 9 = Reference_desk/Archives/Science/2013 February 9


 * 1) Organs Questions
 * 2) Particle-wave duality
 * 3) Covering bare floorboards
 * 4) why was rutherford model of an atom discarded ?
 * 5) Why is the GAU-8 effective?
 * 6) do we know what Mars sounds like?
 * 7) Why is my charger emitting high pitched sound?
 * 8) i think i've heard that Leptin inhibits Gerlin. is that true?
 * 9) in simple words
 * 10) Graphite

= February 10 = Reference_desk/Archives/Science/2013 February 10


 * 1) Annihilation
 * 2) Mass of a test tube full of bare nuclei
 * 3) solar ac dc inverters failure
 * 4) Do photons produce gravitational field ?
 * 5) Planets and frequency of sound
 * 6) Tensor
 * 7) Hydrogen Synthesization
 * 8) Power lines: buried or overground?
 * 9) Breakdown of a Barrel of Oil
 * 10) Upright exercise bike question
 * 11) Asteroid 2012 DA14 and orbital resonance
 * 12) Dr. Imenson (spelling?) medical doctor

= February 11 = Reference_desk/Archives/Science/2013 February 11


 * 1) Anodisation of Aluminium
 * 2) Betretta M9 hammer hole
 * 3) hair drier off lithium batteries?
 * 4) Resonant frequency of an aluminium bar.
 * 5) Atom Volume
 * 6) Logic
 * 7) Geological change in recorded history
 * 8) Splitting water with a vacuum
 * 9) tube amplifers

= February 12 = Reference_desk/Archives/Science/2013 February 12


 * 1) Engineering contractors
 * 2) Densest element ?
 * 3) Spandex vs elastic
 * 4) Media coverage of coronaviruses compared to other infectious diseases
 * 5) Identify a part of the body
 * 6) Protocol for asteroids
 * 7) Camphor wood
 * 8) Why was Typhoid Mary an asymptomatic carrier?
 * 9) Gibbs free energy
 * 10) Properties of blood
 * 11) high school physics
 * 12) Little Ice Age
 * 13) Stove vs. oven usage costs

= February 13 = Reference_desk/Archives/Science/2013 February 13


 * 1) Einstein's theory was wrong
 * 2) How many times thicker is the dermis than the epidermis?
 * 3) Value chain of SLES (Sodium Lauryl Ether Sulfate)
 * 4) Homo sapiens subspecies
 * 5) What is the latest on olive oil and antioxidants? Are they supposed to be good or bad for you now?
 * 6) KWh problem
 * 7) Where can I find real video of the moon orbiting the Earth from perspective outside Moon's orbit?
 * 8) Coefficient of Performance
 * 9) basic theoretical question (no application)
 * 10) Could any engineer devise a toilet operation contingency plan for cruise-ships?

= February 14 = Reference_desk/Archives/Science/2013 February 14


 * 1) String vibration close to resonance.
 * 2) Egg whites and avidin
 * 3) Just a small Question?
 * 4) What kind of monkey is this?
 * 5) looking for a closeup of an anglerfish lure
 * 6) world-wide wind speed average and standard deviation
 * 7) Autosomal Chromosomes

= February 15 = Reference_desk/Archives/Science/2013 February 15


 * 1) Lists of textbooks
 * 2) Perthes disease
 * 3) Research access to data in the New England Journal of Medicine
 * 4) Fluorine Swallowing
 * 5) Air pressure
 * 6) The difference between Fjord and Gulf?
 * 7) The role of splitter plates in jet engine inlet geometry
 * 8) Entropy
 * 9) Entropy production

= February 16 = Reference_desk/Archives/Science/2013 February 16


 * 1) One Kidney Giving Out
 * 2) What do these terms mean?
 * 3) How many isomers does 1024-ane have(both including and excluding stereoisomers)?
 * 4) Conservation of energy
 * 5) About orbits of planets, electrons and other objects in dimensions higher than 3
 * 6) Next glacial period and survival of civilization
 * 7) was robert boyle an idiot.?  or only had a partial understanding of the world.
 * 8) Russian meteor
 * 9) Causes of raised pcp levels in the body
 * 10) what does it mean that relativity and qm are incompatible?

= February 17 = Reference_desk/Archives/Science/2013 February 17


 * 1) Regarding the article Homogenized Milk and Atherosclerosis
 * 2) KEF-2013
 * 3) Quantum tunneling
 * 4) Relevance of physics to microbiology.
 * 5) 3d effect when watching TV while you look through a small hole with one eye
 * 6) velocity of meteor
 * 7) Underground bunker effects of the Russian meteoroid?

= February 18 = Reference_desk/Archives/Science/2013 February 18


 * 1) Why didn't Earth's gravity capture the asteroid 2012 DA14?
 * 2) "Cannon fire" following meteorite impacts
 * 3) tempature of LED
 * 4) Water heater producing hydrogen
 * 5) The girl with an IQ of 161
 * 6) Disease transmission from sharing a cup?
 * 7) Water jet that pops up after somethings drops in water
 * 8) Sulfuric acid and nitric acid for cleaning glassware
 * 9) Arthur C Clarke Space Elevator
 * 10) Salticid eyes
 * 11) Identify guinea fowl-like bird with white cheeks and orange wattles
 * 12) Standard components in Edison, Tesla, and Marconi's day
 * 13) freezing point of water

= February 19 = Reference_desk/Archives/Science/2013 February 19


 * 1) contracting rabies
 * 2) Double-slit experiment and scale
 * 3) wireless electricity transmission
 * 4) Classification of animals
 * 5) Is it possible to discharge electricity by alternating current (AC)?
 * 6) Biochemistry
 * 7) Pantoon?
 * 8) How do you polish a copied key to make it work better?
 * 9) Rope walking
 * 10) Phone signal disconnecting a mouse
 * 11) determination of pesticides by QuEChERS method using LC-MS/MS
 * 12) Polarized lens sunglasses
 * 13) Displacement vs. Distance
 * 14) Really simple question about boiling water
 * 15) Gun safety
 * 16) Vacuum metastability event implosion?
 * 17) applications
 * 18) Speakers & moisture/humidity

= February 20 = Reference_desk/Archives/Science/2013 February 20


 * 1) Recurring smell
 * 2) Rubbing two stones
 * 3) Space-time
 * 4) The mass of the solar system is slightly less than the masses of sun and planets individually
 * 5) Question about a strange polymer
 * 6) Momentum gained by body = Force x Time during which force acts
 * 7) Tonsillar cancer
 * 8) Liquid with highest boiling point

= February 21 = Reference_desk/Archives/Science/2013 February 21


 * 1) Mercury thermometers
 * 2) Signs of life on Titan and Europa?
 * 3) Time running slowly
 * 4) Calculating the electric potential between two point charges
 * 5) Palladium Hydride
 * 6) Pluto to have a watery surface
 * 7) Determining asteroid's orbits
 * 8) If Einstein hadn't invented the theory of relativity, would someone else have?
 * 9) Average energy obtained for hydrolysis of a glycosidic bond and for a peptide bond
 * 10) pupae
 * 11) Materials that are compatible with the use and storage of chlorine pentafluoride, perchloryl fluoride, monomethylhydrazine, and diethylenetriamine?

= February 22 = Reference_desk/Archives/Science/2013 February 22


 * 1) What is the velocity of a body on a circular path?
 * 2) how different are the different species of manatees?
 * 3) Fat burning zone
 * 4) Conditional Probability
 * 5) Alternate wheel arrangement
 * 6) Blast wave
 * 7) Time period of two identical pendulum
 * 8) Matter wave diffraction
 * 9) Where did the mercury in coal come from?
 * 10) BCNT - what's the deal with 11B?
 * 11) An alloy that expands on heating
 * 12) Expanding alloys
 * 13) A sealed ecosystem that thrives for 40 years???
 * 14) ips cells
 * 15) does pwm (pulse width modulation) led's hurt eyes?
 * 16) Humidity
 * 17) what's the essential difference between capacitor and a battery?

= February 23 = Reference_desk/Archives/Science/2013 February 23


 * 1) Identity involving partial derivatives
 * 2) Non-calculus proof of E=mc^2
 * 3) Coal Fired Boilers - Briquettes
 * 4) Selective Knockout
 * 5) Feeding of K-9 dogs
 * 6) Is it possible that a supertanker or a cruise ship that is made of all woods, treenails and tar, can float for a long time?

= February 24 = Reference_desk/Archives/Science/2013 February 24


 * 1) Crushing
 * 2) Quantum mechanical stability of historical timelines
 * 3) Would german V-2 rocket left earth orbit?
 * 4) Liquid nitrogen and frostbite
 * 5) T-90 tank shtora system
 * 6) String or Higgs boson
 * 7) Name of all 11 dimensions of space
 * 8) Food energy
 * 9) Our mirror image is chiral or achiral
 * 10) Vegetarian Experience
 * 11) stereoscopic images
 * 12) Rate of exothermic reaction
 * 13) Better quality safety glasses

= February 25 = Reference_desk/Archives/Science/2013 February 25


 * 1) Pot stats in USA
 * 2) Lithium ion batteries
 * 3) Does exercise really result in weight loss?
 * 4) Ozone hole over Antarctica
 * 5) Why protein requirement is calculated on the basis of total body weight?
 * 6) Nelson Mandela Bridge
 * 7) Child cognitive development - how old does a child have to be to realize that money has worth?

= February 26 = Reference_desk/Archives/Science/2013 February 26


 * 1) 4K resolution tv
 * 2) In what respect two protons (or any two fermion) are not identical?
 * 3) T-90 tank Shtora system
 * 4) How much sensation does a tortoise/turtle have in its shell?
 * 5) About the gravity field  of black hole
 * 6) endosymbiotic theory of prokaryotic evolution
 * 7) Reversing light-emitting diode
 * 8) Why "Hornblower's Sign?"
 * 9) One photon at a time
 * 10) Log laws
 * 11) Angiosperms
 * 12) when a capacitor discharges, is it all converted to heat + light?  what percent light?  if light can't escape, is it all converted to heat?
 * 13) What kind of fish is this
 * 14) T-90 Shtora System
 * 15) Anisotropic aquifers
 * 16) Meat tastes
 * 17) Homosexuality in identical twins

= February 27 = Reference_desk/Archives/Science/2013 February 27


 * 1) practically, how many joules does it take for a helicopter to lift itself?
 * 2) Solar powered garden fountains - suitable latitudes?
 * 3) Dark matter?
 * 4) American and Russian Tank Designs
 * 5) Why is sleep associated with "scary"?
 * 6) Stagnation pressure
 * 7) Space Travel Time Dilation Chart
 * 8) Calculating Shaft Power
 * 9) The writers of the IQ tests are the smartest persons on earth?!
 * 10) Engineering and medicine

= February 28 = Reference_desk/Archives/Science/2013 February 28


 * 1) Emotional impact of surveillance
 * 2) increasing white blood cell count
 * 3) Oldest extant species
 * 4) two questions about flight.  1) why do helicopters have 4 blades?
 * 5) second theoretical question about aerodynamics
 * 6) Organic chemistry - Flavons and Flavoniods
 * 7) An optical distortion?