Wikipedia:Reference desk/Archives/Science/February 2013
<< Jan | Science desk | Mar >> |
---|
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. |
February 1 edit
February 2 edit
February 3 edit
February 4 edit
February 5 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 5
- Yellow rain
- Law of excluded middle, null hypothesis, and disproof of god
- feeling "surreal" or like the world is a fabrication or a simulation
- Zycosoil
- Chelating?
- Vacuum of space
- Intermezzo (zolpidem tartrate)
- microbiology
- Live double-headed eagles
- Black sky at night
- Economic growth , what curve?
- Burnt stew
February 6 edit
February 7 edit
February 8 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 8
- Camera quality as a function of weight
- Anti-cancer molecule TRAIL
- MTBE
- Jupiter and the Romans
- About isotopes
- Forms of energy
- Iranian and Iraqis anti-aircraft air defense
- Kite with extremely long string
- Symbol of mass number
- Why don't the electrons fall into the nucleus?
- How to freeze water in 5 seconds?
- Space between atoms
- DVI and VGA cable
- Amount of heat input required to cut stainless steel plates
February 9 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 9
- Organs Questions
- Particle-wave duality
- Covering bare floorboards
- why was rutherford model of an atom discarded ?
- Why is the GAU-8 effective?
- do we know what Mars sounds like?
- Why is my charger emitting high pitched sound?
- i think i've heard that Leptin inhibits Gerlin. is that true?
- in simple words
- Graphite
February 10 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 10
- Annihilation
- Mass of a test tube full of bare nuclei
- solar ac dc inverters failure
- Do photons produce gravitational field ?
- Planets and frequency of sound
- Tensor
- Hydrogen Synthesization
- Power lines: buried or overground?
- Breakdown of a Barrel of Oil
- Upright exercise bike question
- Asteroid 2012 DA14 and orbital resonance
- Dr. Imenson (spelling?) medical doctor
February 11 edit
February 12 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 12
- Engineering contractors
- Densest element ?
- Spandex vs elastic
- Media coverage of coronaviruses compared to other infectious diseases
- Identify a part of the body
- Protocol for asteroids
- Camphor wood
- Why was Typhoid Mary an asymptomatic carrier?
- Gibbs free energy
- Properties of blood
- high school physics
- Little Ice Age
- Stove vs. oven usage costs
February 13 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 13
- Einstein's theory was wrong
- How many times thicker is the dermis than the epidermis?
- Value chain of SLES (Sodium Lauryl Ether Sulfate)
- Homo sapiens subspecies
- What is the latest on olive oil and antioxidants? Are they supposed to be good or bad for you now?
- KWh problem
- Where can I find real video of the moon orbiting the Earth from perspective outside Moon's orbit?
- Coefficient of Performance
- basic theoretical question (no application)
- Could any engineer devise a toilet operation contingency plan for cruise-ships?
February 14 edit
February 15 edit
February 16 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 16
- One Kidney Giving Out
- What do these terms mean?
- How many isomers does 1024-ane have(both including and excluding stereoisomers)?
- Conservation of energy
- About orbits of planets, electrons and other objects in dimensions higher than 3
- Next glacial period and survival of civilization
- was robert boyle an idiot.? or only had a partial understanding of the world.
- Russian meteor
- Causes of raised pcp levels in the body
- what does it mean that relativity and qm are incompatible?
February 17 edit
February 18 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 18
- Why didn't Earth's gravity capture the asteroid 2012 DA14?
- "Cannon fire" following meteorite impacts
- tempature of LED
- Water heater producing hydrogen
- The girl with an IQ of 161
- Disease transmission from sharing a cup?
- Water jet that pops up after somethings drops in water
- Sulfuric acid and nitric acid for cleaning glassware
- Arthur C Clarke Space Elevator
- Salticid eyes
- Identify guinea fowl-like bird with white cheeks and orange wattles
- Standard components in Edison, Tesla, and Marconi's day
- freezing point of water
February 19 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 19
- contracting rabies
- Double-slit experiment and scale
- wireless electricity transmission
- Classification of animals
- Is it possible to discharge electricity by alternating current (AC)?
- Biochemistry
- Pantoon?
- How do you polish a copied key to make it work better?
- Rope walking
- Phone signal disconnecting a mouse
- determination of pesticides by QuEChERS method using LC-MS/MS
- Polarized lens sunglasses
- Displacement vs. Distance
- Really simple question about boiling water
- Gun safety
- Vacuum metastability event implosion?
- applications
- Speakers & moisture/humidity
February 20 edit
February 21 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 21
- Mercury thermometers
- Signs of life on Titan and Europa?
- Time running slowly
- Calculating the electric potential between two point charges
- Palladium Hydride
- Pluto to have a watery surface
- Determining asteroid's orbits
- If Einstein hadn't invented the theory of relativity, would someone else have?
- Average energy obtained for hydrolysis of a glycosidic bond and for a peptide bond
- pupae
- Materials that are compatible with the use and storage of chlorine pentafluoride, perchloryl fluoride, monomethylhydrazine, and diethylenetriamine?
February 22 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 22
- What is the velocity of a body on a circular path?
- how different are the different species of manatees?
- Fat burning zone
- Conditional Probability
- Alternate wheel arrangement
- Blast wave
- Time period of two identical pendulum
- Matter wave diffraction
- Where did the mercury in coal come from?
- BCNT - what's the deal with 11B?
- An alloy that expands on heating
- Expanding alloys
- A sealed ecosystem that thrives for 40 years???
- ips cells
- does pwm (pulse width modulation) led's hurt eyes?
- Humidity
- what's the essential difference between capacitor and a battery?
February 23 edit
February 24 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 24
- Crushing
- Quantum mechanical stability of historical timelines
- Would german V-2 rocket left earth orbit?
- Liquid nitrogen and frostbite
- T-90 tank shtora system
- String or Higgs boson
- Name of all 11 dimensions of space
- Food energy
- Our mirror image is chiral or achiral
- Vegetarian Experience
- stereoscopic images
- Rate of exothermic reaction
- Better quality safety glasses
February 25 edit
February 26 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 26
- 4K resolution tv
- In what respect two protons (or any two fermion) are not identical?
- T-90 tank Shtora system
- How much sensation does a tortoise/turtle have in its shell?
- About the gravity field of black hole
- endosymbiotic theory of prokaryotic evolution
- Reversing light-emitting diode
- Why "Hornblower's Sign?"
- One photon at a time
- Log laws
- Angiosperms
- 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?
- What kind of fish is this
- T-90 Shtora System
- Anisotropic aquifers
- Meat tastes
- Homosexuality in identical twins
February 27 edit
Wikipedia:Reference_desk/Archives/Science/2013 February 27
- practically, how many joules does it take for a helicopter to lift itself?
- Solar powered garden fountains - suitable latitudes?
- Dark matter?
- American and Russian Tank Designs
- Why is sleep associated with "scary"?
- Stagnation pressure
- Space Travel Time Dilation Chart
- Calculating Shaft Power
- The writers of the IQ tests are the smartest persons on earth?!
- Engineering and medicine