Wikipedia:Reference desk/Archives/Science/July 2010

= July 1 = Reference_desk/Archives/Science/2010 July 1


 * 1) Homogeneous Continuous-time Markov chains - analytical expressions for the finite time transition probabilities?
 * 2) Iron
 * 3) Expiration of medicine
 * 4) Help identifying this flower
 * 5) Neodymium magnets
 * 6) Weight loss
 * 7) Suntan
 * 8) Reptiles + amphibians
 * 9) Surface tension
 * 10) Plaiting and fluffiness
 * 11) Does a penis have other functions besides urination and copulation?
 * 12) Credibility of hypotheses
 * 13) Career in nanotechnology?
 * 14) Wasps
 * 15) A hydrophobic cup?
 * 16) Help identifying this fruit
 * 17) Would the car explode?
 * 18) How much energy required to reach infinite speed?
 * 19) question about new planet
 * 20) Trench binocular
 * 21) Do the positions of stars change much relative to each other?
 * 22) Tori Vienneau
 * 23) World building.
 * 24) Micro rockets
 * 25) Why does the ocean appear so high?

= July 2 = Reference_desk/Archives/Science/2010 July 2


 * 1) Phantom question (nothing to do with the paranormal)
 * 2) Wormholes
 * 3) MP3 player (well, really amplifier) power consumption
 * 4) is there such a thing as a "semi-permanent" or reversible tattoo?
 * 5) Copper(I) sulfate
 * 6) Concentration of NaOH
 * 7) HCl and NaOH
 * 8) Titration
 * 9) Temperature of the ocean
 * 10) Audio amplifier power output
 * 11) natural skin oil
 * 12) Name these two plants?
 * 13) Annual architectural plants

= July 3 = Reference_desk/Archives/Science/2010 July 3


 * 1) Enthalpy-entropy chart
 * 2) Medroxyprogesterone versus medroxyprogesterone acetate
 * 3) jail
 * 4) Trapped in a fusion reactor?
 * 5) Metric system
 * 6) the sun
 * 7) nucleus diameter
 * 8) Decreasing metabolism?
 * 9) [Geography] Locate or name the lake by picture
 * 10) Superball dynamics
 * 11) Time Dilation

= July 4 = Reference_desk/Archives/Science/2010 July 4


 * 1) Forward-swept wings
 * 2) Tin allotrope conversion
 * 3) Piano Lid Prop angle
 * 4) SI prefixes (redux)
 * 5) Adidas Jabulani
 * 6) Diopters
 * 7) Reptiles sense of time
 * 8) Reptiles' sense of time
 * 9) Reptile's sense of time
 * 10) Is there a behavioral explanation?
 * 11) Strange beetle
 * 12) abbe or v number
 * 13) Mig-29

= July 5 = Reference_desk/Archives/Science/2010 July 5


 * 1) Giant isopod-- survival outside of water
 * 2) Ancient Machines
 * 3) Could you clone a human female from male cells?
 * 4) Strange hydrostatic aroud Australia
 * 5) Difference between mud and loam
 * 6) Is it Gun cotton?
 * 7) Duty or pleasure?
 * 8) Identifying a Howitzer

= July 6 = Reference_desk/Archives/Science/2010 July 6


 * 1) I don't get gravity
 * 2) Why does an acidic oxide reacts with water to form an acid?
 * 3) Rifled slug?
 * 4) Hyrachyus
 * 5) Hawaii
 * 6) Cooking Pizza
 * 7) A perpetual motion machine
 * 8) Stellar parallax and the movement of the sun
 * 9) Bass energy sucking
 * 10) Sprite freezing
 * 11) I don't understand quantum mechanics!

= July 7 = Reference_desk/Archives/Science/2010 July 7


 * 1) magictrick banknote in a fruit
 * 2) side mirror
 * 3) Animal Eyes
 * 4) Dragonfly
 * 5) An open tube is placed into a container of water
 * 6) North American bugs
 * 7) Source of stream goes both ways?
 * 8) Is it fair to say that the 4th dimension is not time?
 * 9) How do they use fusion reactors to make electricity?
 * 10) Cookie/cake mixes
 * 11) Actinidain allergies
 * 12) beetles
 * 13) Plastic Recycling - Expanding from 1-7 from 1-2 only
 * 14) How hot is hot water?
 * 15) Finger squashing objects

= July 8 = Reference_desk/Archives/Science/2010 July 8


 * 1) WTF is that on your ear? AKA fleshy protuberance on the targus?
 * 2) Lego
 * 3) KBr (Potassium Bromide)
 * 4) "Shadow Biosphere" life on earth with arsenic DNA backbone?
 * 5) ring strain in cyclic adenosine monophosphate
 * 6) stimulation of exocytosis of nanoparticles by administration of 8-Br-cAMP
 * 7) I have a point-and-shoot digital camera
 * 8) Burning polythene
 * 9) Killer swan mom part 2
 * 10) The effect of life on light shining through the atmosphere
 * 11) mythbusters nitro ram recoil.
 * 12) acoustic levitation and spiderman
 * 13) Forest terminology — non-coniferous?
 * 14) dehydrated yogurt
 * 15) Evolution and entropy

= July 9 = Reference_desk/Archives/Science/2010 July 9


 * 1) Human flight to mars or venus
 * 2) Location of Navajo Sandstone
 * 3) Self-inflating Ball
 * 4) Wind turbine blades
 * 5) veneer
 * 6) Dehydrated vs. freeze-dried
 * 7) Immiscible liquids
 * 8) Magnetism
 * 9) Cyanide death
 * 10) Zucchini
 * 11) homosexuality
 * 12) pheresis rate
 * 13) Best season for avoiding camel spiders?
 * 14) do people really believe their beliefs?
 * 15) The barge hitting the "Duck" boat

= July 10 = Reference_desk/Archives/Science/2010 July 10


 * 1) Elevation of the Cajon Pass in San Bernardino County, CA
 * 2) submitting an article for review.
 * 3) Night sky on Mars
 * 4) Hollow core concrete slabs
 * 5) DRI and RDA intake
 * 6) Recharging the unrechargeable Issue
 * 7) Medically pure tin
 * 8) Stoichiometry
 * 9) Molniya orbit
 * 10) Aircraft tails
 * 11) Diatomaceous earth

= July 11 = Reference_desk/Archives/Science/2010 July 11


 * 1) Ground connection
 * 2) Quantum mechanics, psychology, and free will
 * 3) Condition with monologuing, stream-of-consciousness speech
 * 4) Resonating chimney creates infrasound in breeze?
 * 5) Parkinson's disease differences from chronic alcoholism
 * 6) Where is the 2nd dimension?
 * 7) fluorescent light
 * 8) Tetramethrin
 * 9) Electric stove

= July 12 = Reference_desk/Archives/Science/2010 July 12


 * 1) Potable water caulking
 * 2) Symptoms of vasular dementia
 * 3) Simple circuit to charge my bike light batteries to supply my lights
 * 4) free GIS software that can do orthorectification?
 * 5) Question on 3D TVs
 * 6) Gulf of Mexico Oil Spill
 * 7) Is it Normal, guys ?
 * 8) omniverse
 * 9) Where the hell is Metadata?
 * 10) Is it a Fraud, a Cheap marketing stunt?
 * 11) Octopus eye
 * 12) I don't understand the "Quantum" in Quantum Mechanics
 * 13) Temperature Fluctuations at the Equator
 * 14) Insects repairing themselves
 * 15) harnessing infinite?
 * 16) Rorschach test in job interviews
 * 17) Is anyone here a doctor
 * 18) My water heater

= July 13 = Reference_desk/Archives/Science/2010 July 13


 * 1) The bends and pressure
 * 2) iPhone 4 antenna
 * 3) Electrophoresis
 * 4) help
 * 5) Is HGH a precursor to testosterone?
 * 6) Can you 'boil' heat water by compressing it?
 * 7) Nitroglycrine
 * 8) black swallowtails
 * 9) Equation
 * 10) Elevated heart rate
 * 11) Stretching tapes
 * 12) Dark matter
 * 13) Gravitation
 * 14) Food preparation, handling of (fish) meat
 * 15) Cat vision
 * 16) Pressure of Deepwater Horizon Oil Leak
 * 17) Arch
 * 18) animal feelings

= July 14 = Reference_desk/Archives/Science/2010 July 14


 * 1) diving
 * 2) hummers
 * 3) poor bees
 * 4) "carpenter bees"
 * 5) ink
 * 6) Resistor calculation
 * 7) Ideas for scientific imagery
 * 8) Phone connectors in the UK
 * 9) Exoplanetary systems in Sagittarius
 * 10) Head massagers: How do they work?
 * 11) Methyl 1 d - muscle growth drug
 * 12) watermellon
 * 13) Cold Skin
 * 14) birds
 * 15) Osteochondritis and related conditions
 * 16) IV

= July 15 = Reference_desk/Archives/Science/2010 July 15


 * 1) Magnetic Field
 * 2) safe use of electric fields on cells
 * 3) Glowing yellow glass
 * 4) Heisenberg quote on quantum mechanics and Indian philosophy
 * 5) Double standard
 * 6) ticks
 * 7) hiccups
 * 8) Identify fish
 * 9) Speech therapy
 * 10) Starting masturbation at a very young age
 * 11) The name of an intense burst of heat and wind.
 * 12) Volumetric flasks
 * 13) Quantum entanglement
 * 14) What is the blue in this photo of the Moon?
 * 15) Is this a bunion?
 * 16) Chocolate Liquor

= July 16 = Reference_desk/Archives/Science/2010 July 16


 * 1) Is there an easy way to estimate genes in genetics?
 * 2) Sound Waves
 * 3) Is this a blast furnace or some other sort of furnace?
 * 4) Venus in a small telescope
 * 5) How do fish drink?
 * 6) Permanent marking LDPE
 * 7) is there something wrong in the way I've corresponded to scientists?
 * 8) replacing and changing cell media while under a microscope
 * 9) DOLPHINS
 * 10) DEER
 * 11) Cactus
 * 12) Snakes
 * 13) DNA construct naming/nomenclature?
 * 14) Jellyfish
 * 15) Building making it's own weather?
 * 16) fundamental forces
 * 17) shellac
 * 18) human body aging - what's happening when things begin to sag/stretch downwards?

= July 17 = Reference_desk/Archives/Science/2010 July 17


 * 1) Different forms of lead - enviroment
 * 2) butterflies
 * 3) Getting peanut out of your body faster
 * 4) Trimming macaw toenails
 * 5) Dementia.
 * 6) Metric system
 * 7) How portions of the brain are identified
 * 8) Fast neutron reactor meltdowns
 * 9) Animal Allergies
 * 10) Loudspeaker distortion

= July 18 = Reference_desk/Archives/Science/2010 July 18


 * 1) Nasal passages
 * 2) Tippe top
 * 3) Is this cable modem fried from lightning or not? (2 pictures, Cisco EPC2607)
 * 4) High-friction coating for bike rims to improve braking efficiency?
 * 5) Disc brakes — bikes
 * 6) Infrared thermometer

= July 19 = Reference_desk/Archives/Science/2010 July 19


 * 1) corn fields
 * 2) solar cells, photovoltaic, photosynthesis
 * 3) Plasma weapon
 * 4) Would plasma cause electrocution in addition to burns?
 * 5) Silver + Phosphate
 * 6) Minimum air pressure for sound
 * 7) Maps for streams
 * 8) Catnip and REM sleep
 * 9) Alcubierre drive
 * 10) Scientific name of Clown Dorid
 * 11) scratching: survival benefits
 * 12) Dragons using chemicals to generate fire?
 * 13) Von Kossa Stain
 * 14) Info about the changing face of the Earth
 * 15) Teeth
 * 16) Dextropropoxyphene
 * 17) Scrotal implosion
 * 18) Two dimensional thrust vectoring
 * 19) Bates method
 * 20) Can probiotics develop antibiotic resistance?

= July 20 = Reference_desk/Archives/Science/2010 July 20


 * 1) Unidentified Insect
 * 2) Elements in the human body
 * 3) Lemon Juice - alkaline or acidic?
 * 4) age
 * 5) Strange worms - Could anyone tell me what these are?
 * 6) would it be possible to duplicate, mechanically, the action of a modern CPU (obviously at up to minutes per clock cycle).
 * 7) how did the Greeks discover the earth was round?
 * 8) Website which shows raincloud movement for the next few hours (in UK)?
 * 9) induction
 * 10) how do you tell if a plant cell has apoptosed?
 * 11) odorless mineral spirits
 * 12) Anything science still can't do?
 * 13) Measuring temperatures in Ireland in the late 17th century

= July 21 = Reference_desk/Archives/Science/2010 July 21


 * 1) A Shocking Experience ?
 * 2) Why do we need oxygen?
 * 3) Chemistry
 * 4) Refrigerant leak?
 * 5) Antibiotics
 * 6) What do you call this sort of cytoplasmic channel?
 * 7) Survival benefits of scratching
 * 8) Sheep breeding season
 * 9) Wind Turbines on Cars
 * 10) Follow up refrigerant leak question
 * 11) Avro Vulcan
 * 12) Colour-in 3D chick embryogenesis models/pictures?
 * 13) Birds
 * 14) Yosemite

= July 22 = Reference_desk/Archives/Science/2010 July 22


 * 1) Lily Flower Identification
 * 2) Telling the difference between free fall and micro-gravity
 * 3) What do blind people see?
 * 4) Soul
 * 5) Spider Identification Please
 * 6) Qualia
 * 7) Mouse
 * 8) Negative energy?
 * 9) speeding up the cell cycle
 * 10) Conservation laws and FTU
 * 11) redout
 * 12) Fall of the ant
 * 13) Meat

= July 23 = Reference_desk/Archives/Science/2010 July 23


 * 1) See-through ?
 * 2) How does the cut-off frequency in the photoelectric effect support the photon theory of light?
 * 3) ammonia and baking soda
 * 4) 18 and acne normal?
 * 5) smoking and the liver
 * 6) immune system
 * 7) evolution of the mammalian red blood cell
 * 8) Paternosters
 * 9) entry of gold nanoparticles into the cell nucleus
 * 10) Custom color urine
 * 11) Mg + H2O
 * 12) heat and rain
 * 13) What do you retain from textbooks read years ago?
 * 14) Katana
 * 15) How hot is it really?
 * 16) peppers
 * 17) How did dinosaurs mate?

= July 24 = Reference_desk/Archives/Science/2010 July 24


 * 1) What creature is this?
 * 2) HD sunglasses and paint
 * 3) If you know English and only English...
 * 4) poison ivy
 * 5) Multimeter
 * 6) Playing Pokemon today and I wondered...
 * 7) can silver nitrate eat cloth?
 * 8) white horse wind wave.
 * 9) Pocket Monsters Special Yellow (final battle): Lava surfing?
 * 10) Budgerigars and reflection recognition

= July 25 = Reference_desk/Archives/Science/2010 July 25


 * 1) Ultra violet rays
 * 2) Odd chemical reaction?
 * 3) Absolute certainty
 * 4) Type of Current in Landline
 * 5) Graph with an unexpected spike in it?
 * 6) Skyscraper cost
 * 7) explain the production of car in japan
 * 8) Canine vs human rabies vaccine
 * 9) Ropinirole
 * 10) Compressed sound of a jetliner
 * 11) household / domestic sonicators
 * 12) Evolution
 * 13) Achilles tendon humans vs animals
 * 14) Triple Slits, Born's Rule, and Sum over Histories
 * 15) Question about effects of lightning
 * 16) Sealing in juices; frying meat

= July 26 = Reference_desk/Archives/Science/2010 July 26


 * 1) Smardale RIGS
 * 2) Effeminacy
 * 3) A 100 W light bulb emits light with a wavelength of 575 nm
 * 4) Bone Weight
 * 5) Are strings matter?
 * 6) soundwaves
 * 7) Thermodynamics what-if
 * 8) Human magnetoception
 * 9) Westons Mill Pond
 * 10) culturing cells on conductive cover slips
 * 11) Plant ID request
 * 12) Help me identify these intercellular bridges, follow-up?

= July 27 = Reference_desk/Archives/Science/2010 July 27


 * 1) Can a gas shield the Earth?
 * 2) There is not enough darkness in all the world to put out the light of even one small candle
 * 3) Volume of blood in the human body
 * 4) Bermuda Triangle
 * 5) How much paneer cheese would I get per litre of milk?

= July 28 = Reference_desk/Archives/Science/2010 July 28


 * 1) Phlebotomy Laws
 * 2) A question about Desmoplastic small round cell tumor question
 * 3) Evolutionary adaption queuing problem
 * 4) Do blackholes tear holes in space-time?
 * 5) how many people have drifted off to space irrevocably while on moonwalks
 * 6) explanation on weather precip chance
 * 7) safety procedures
 * 8) woodpecker question
 * 9) I don't understand part of General Relativity
 * 10) 30% hydrogen peroxide...usually by weight or volume?
 * 11) Smardale Gill viaduct - sandstone or limestone
 * 12) do you have enough calories to get to the moon? (or: how fat do you have to be)
 * 13) Direction of current
 * 14) can you tell just by the honk whether a man or woman is blowing their nose?
 * 15) Are we all epigeneticists?
 * 16) Sun Exposure, Skin Cancer and Vitamin D

= July 29 = Reference_desk/Archives/Science/2010 July 29


 * 1) Turbojets
 * 2) What is the lightest/least dense non-porous solid?
 * 3) Airport Runways
 * 4) About CAN networking
 * 5) iitmadras
 * 6) why do stocks prices move during the day even when there is no new information!
 * 7) Dog repellent
 * 8) Double S(not T)P in one day
 * 9) what type of endocytosis is this?
 * 10) helium,

= July 30 = Reference_desk/Archives/Science/2010 July 30


 * 1) in a cell culture medium, pH 7.4, will hydrogen peroxide oxidise colloidal gold?
 * 2) Stress Energy Tensor
 * 3) Piper nigrum and alcohol
 * 4) Quantum Mechanics Problem
 * 5) practical consequences of existence
 * 6) Misinterpretation of UN population report?
 * 7) canteloupe
 * 8) Atomic theory
 * 9) water
 * 10) Flossing
 * 11) paradoxical redox reactions
 * 12) Wisteria
 * 13) veneer core plywood
 * 14) Strange patterns in the water
 * 15) Irrational fear
 * 16) Name this climbing plant?
 * 17) Silent cars?

= July 31 = Reference_desk/Archives/Science/2010 July 31


 * 1) Have cognitive scientists explained why it's tedious to not use pronouns?
 * 2) Speed of lightning
 * 3) Rechargeable batteries not recharging
 * 4) Blu-Ray video files?
 * 5) difference between taxis and tropism
 * 6) Working prototypes
 * 7) Plant health question (Podocarpus macrophyllus)
 * 8) Farm Pond Spray Fountain
 * 9) Who coined the term 'fine-tuned Universe'?
 * 10) Corner reflector