Wikipedia:Reference desk/Archives/Science/September 2009

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.

September 1

Wikipedia:Reference_desk/Archives/Science/2009 September 1

1. Mice Trap
2. Strange calculations of C
3. Pin tumbler lock
4. perchlorate
5. Surface tension image - comment
6. Chemistry
7. Optical beam combiner?
8. Why should we bleed when blood pressure is lesser than atmospheric pressure?
9. What's the closest human equivalent to what a bird feels when going through a heavy moult?
10. Astronomy: Stray Stars?
11. Electromagnet Vs Headphones
12. What psychological aliment or psychosis does this person have?
13. cause of death
14. European Space Agency's Bernard Foing
15. Does the gravitational constant implicitly include 4 pi?
16. Density
17. Buying a telescope.

September 2

Wikipedia:Reference_desk/Archives/Science/2009 September 2

1. pot handle gives off vapors at high heat
2. salty tastes and Cl- and Na+ ions
3. anions of -2 charge and higher
4. Solved Problems in Gauss law & Columbs law
5. Xenon octafluoride and isoelectronic species
6. Lap Tops and Cell Phones in the next 5 years
7. What's the black stuff in my apple juice bottle?
8. Rigidity
9. impact force from braking
10. calculating the BPs and MPs of pure perchloric acid
11. Staring at black and gray object for a looong time without blinking
12. Moon to survive without earth

September 3

Wikipedia:Reference_desk/Archives/Science/2009 September 3

1. replacement of secondary alcohol (in benzyl position) with H
2. how is -COOH formation oxidisation?
3. pressure distribution , how amount and area of effect works
4. bus bar
5. Attachment of dental crowns
6. Why do ruins end up buried under soil?
7. What do stock traders do?
8. "Mass" of colour
9. earth without moon
10. CO2e emissions
11. Ants inside me
12. nucleus volume
13. Animals and birds fear of humans
14. Radiation from a curvy line on a 2D plane
15. Humane way to remove paper wasp nest from a tree.
16. Wolves afraid of red flags/objects?
17. ratio of brain size to body size

September 4

Wikipedia:Reference_desk/Archives/Science/2009 September 4

1. Containment of Rust
2. Toxicity of lead(II) nitrate
3. green leaf mulch - metabalism or decay?
4. Mustard stains turn pink?
5. two neutrons
6. Born with feet the wrong way round?
7. Magnise Steel
8. Reviving an extinct common ancestor of two taxa
9. half-life
10. short half-life and fusion
11. nuclear reactions
12. Inventions
13. Cliffs
14. New theory or proposal?
15. Virtual Work
16. Queries about Strong Nuclear Force
17. falling distance
18. Opal inlays
19. static electricity - clothes
20. Are these properties physical or chemical?
21. Cactus
22. Stomach to Bladder

September 5

Wikipedia:Reference_desk/Archives/Science/2009 September 5

1. Dead flies on outdoor plants
2. Moon landing time
3. Sun's increased radiated energy
4. Atomic Mass Question
5. Black hoe
6. leaving groups, chemical attacks, MOs, and stuff.
7. sensation
8. Symbols used in this type of molecular diagram
9. Saltwater mouthwash
10. object maving in free space
11. flies
12. SMPA
13. neutron decay products
14. discrete solutions of 1H schrodinger

September 6

Wikipedia:Reference_desk/Archives/Science/2009 September 6

1. Human race vs Human species
2. Future human evolution and brain complexity
3. Formula for subjective sound fading with distance, and adding
4. Defunct Sciences
5. list of chemicals by density?
6. What is the transit time for the human baby gut?
7. LiFePo4
8. icd-9 volume 3
9. Electronics Project
10. HNO3+carbamide
11. Relativity and Existence
12. Would these tomatoes growing at a sewage works be safe to eat?
13. Identify this.

September 7

Wikipedia:Reference_desk/Archives/Science/2009 September 7

1. cloth fibers
2. "Suspension" of a suspension bridge
3. Radioactivity in the early Earth.
4. drug/biochemical for feeling refreshed
5. How much noise do moving cars and other vehicles make?
6. Bouncing soap bubbles, electrical?
7. Shell vial for prions
8. what is Prohesion
9. Shared Lake
10. nuclear reactions
11. Insect Identification
12. Impact of the type of cigarettes smoked on the decrease in life expectancy
13. Anemia/obesity connection
14. Snapping a street light by repeated poking with finger

September 8

Wikipedia:Reference_desk/Archives/Science/2009 September 8

1. Animals fighting...
2. Space shuttle landing stuff
3. Quickly drying a heat-sensitive powder
4. Beginning of science: Aristotle or Galileo
5. For woman, does size matter?
6. Aversion and fear
7. how to pump a longboard (skateboard)
8. Asian (Indian) elephants and African elephants
9. Biochemistry question: What does oxygen do in this case?
10. Peroxisome

September 9

Wikipedia:Reference_desk/Archives/Science/2009 September 9

1. Energy content
2. Nerves and eyes
3. Higgs boson
4. Pass the veggie dogs please!
5. How to charge the batteries and measure current?
6. Glucose oxidation
7. How can matter exist?
8. How fast do interstellar dust clouds move?
9. Oxymuriate of mercury
10. how trained are drug dealers/makers in organic chemistry, usually?

September 10

Wikipedia:Reference_desk/Archives/Science/2009 September 10

1. identical location
2. Preventing/Dissuading housecats from slaughtering houseplants...? Hizzelp!
3. Strange haze around the ISS
4. history of the octet rule ... and proving that something is an element
5. heat of fusion of aluminum oxide...
6. michelson and morley experiment
7. temperature-dependent heat capacity of aluminum
8. How to calculate the density of a gas
9. Mixtures and phases
10. Predicting lottery numbers
11. heart
12. Extremely fast Blu-Ray recorder required
13. Car tire wear
14. Otitis
15. displacement
16. Reflex enclosure design before TS
17. aliens & ufo
18. I can't remember what it's called
19. physics(electricity)
20. dark energy
21. Lux and sunlight
22. What causes older people to have trouble rising?

September 11

Wikipedia:Reference_desk/Archives/Science/2009 September 11

1. Blood Glucose Nanotcehnology
2. Need help understanding American sports gambling notation...
3. Battery leak query
4. Acres of rice
5. REQUEST FOR INFORMATION ON UGCA 292 (DDO 125) GALAXY
6. How far can your cat see into the universe?
7. What Australian plants relate to American ones from the time of Gondwana?
8. Path through Earth
9. Laxative
10. UTIs in history
11. chemical engeneering
12. Hammett equation and (normalised?) constants
13. electron withdrawing in two directions (induction only)
14. Fly energy; really quite impressive
15. decreased electrophilicity of diacetyl?
16. iodine test
17. Allergy to chemical element
18. albedo
19. electropotential of esters
20. Heavy Metals in the Earth's Crust
21. The Perfect Mirror
22. Green Pretzels
23. vortex and the third law
24. Human hermaphrodites
25. Fossil Fuels and CO2

September 12

Wikipedia:Reference_desk/Archives/Science/2009 September 12

1. dead cockroaches
2. Respiration
3. Environmental impact assessment
4. the organic chemistry of carbon dioxide fixation (i.e. mechanism of RuBisCO)
5. How did Eskimo or Inuit tribes defend themselves against polar bears before they had guns?
6. biosynthesis of phosphoric acid (charge balance on DNA part deux, OMG)
7. Astrophysics

September 13

Wikipedia:Reference_desk/Archives/Science/2009 September 13

1. Why are prisoners asked to cough during a body cavity search?
2. Phenomenon?
3. Forests Vrs. Deserts
4. Virtual Work (again!)
5. Beer traps
6. growth of a cell membrane
7. Is this correct?
8. Real time (or time based) public transport information on maps
9. Time freezing
10. Mosquitoes
11. accuracy and precision

September 14

Wikipedia:Reference_desk/Archives/Science/2009 September 14

1. Identify string in my foot
2. Can you strain your tongue?
3. Fields
4. Is a 12 gauge sabot shotgun round traceable?
5. Electric fences for cattle and horses: dangerous to humans?
6. significant variation in the number of genes between homologous chromosomes
7. bird acrobatics
8. Anicent plotting of landmass
9. Afterimage to work
10. Walking v. jogging for fitness

September 15

Wikipedia:Reference_desk/Archives/Science/2009 September 15

1. Integrins and signal transduction
2. Grapes undissolvable?
3. stem cell
4. Why are commercial culinary funnels made with pipes?
5. The cause of gravity.
6. Thermite
7. rice growing
8. matter, gravity, space and time
9. Bugs, Sun, Moon
10. Design specifications for industrial pipeline flame arrester
11. Why is it colder in the winter?

September 16

Wikipedia:Reference_desk/Archives/Science/2009 September 16

1. What is "absolute mass"
2. Michelson-Morely Experiment
3. neurovegetative
4. Glomerular filtration rate
5. Healthy liver
6. is it common for people to sneeze after taking cough medicine
7. Help identifying an insect (and maybe a flower)
8. how to make a mini hot-plate?
9. Electron microscope?

September 17

Wikipedia:Reference_desk/Archives/Science/2009 September 17

1. Sunscreen stability?
2. Number of planets
3. Short Fever
4. Sound in free-space/vacuum
5. Moons of Mars
6. Cute animals
7. Eye pain / Menstrual Cycle
8. Gravity at the center of a body
9. Finding a vein: legs, arms and the jugular
10. Anti - Perspirant causes Cancer
11. Safety of soy protein extraction using hexane
12. Unknown beetle
13. on gas cylinders
14. pervaginal examination
15. Do chimps sit?
16. Global warming
17. natural or something else?

September 18

Wikipedia:Reference_desk/Archives/Science/2009 September 18

1. Water and the Human Body
2. Energy eigenfunctions of a free particle
3. Incinel, inkinel, ...?
4. remove reproductive organs
5. 1,2 diketones and ascorbic acid
6. Natural walking speed?

September 19

Wikipedia:Reference_desk/Archives/Science/2009 September 19

1. Alcohol by volume myths
2. Alkene Nomenclature
3. Does a knife wound to the stomach cause immediate death?
4. Genetically engineered corn seed
5. Plumbing - tap not running properly
6. Wave functions
7. Blu Tack properties
8. Galileo and gravity
9. All objects with the same air resistance fall at the same rate?
10. Are there any pleasant wildernesses left in the world?
11. Antihallucinogenics

September 20

Wikipedia:Reference_desk/Archives/Science/2009 September 20

1. Breath-Controlled Automobiles (not the toy cars)
2. instantaneous speed question
3. transistor
4. About particle accelerator
5. what can I grow in a vase ~5" by ~30" ?
6. What is WELS?
7. Genetically engineered meat growing plant?
8. your premises are wrong, your argument is invalid, but your conclusion is correct.
9. Inexpensive LCD display that is relatively good for photo editing work — recommendations?
10. radioactive decay: kinetics v. thermodynamics
11. Victoria Falls swimmers
12. Declining bee population?
13. Jupiter's gravity protecting Earth from comet impacts
14. Masturbation

September 21

Wikipedia:Reference_desk/Archives/Science/2009 September 21

1. Visually sexing non-sexually diamorphic parrots?
2. Voltage ratings for light bulbs?
3. Furry *green* animals?
4. Bunches of doctors in an emergency room...
5. an adiabatic enclosure, 2 mol of Cu...
6. Lymphocytes
7. Combustion
8. The mystery of the defunct scientific journal
9. Why don't I sneeze when I'm asleep?
10. trauma
11. Virial Theorem & Quantum Mechanics
12. Extreme Trees
13. Star Trek Voyager & Beaming Stuff Aboard
14. Pendulum's bob
15. Turning into another creature
16. Medicine
17. ideal gas
18. Car steering problem
19. housing ideas for wiring in a heated enviroment?
20. Ok to throw fermented waste in my compost?

September 22

Wikipedia:Reference_desk/Archives/Science/2009 September 22

1. Soap vs Hand Sanitizer
2. anyone have a picture of solid chlorine?
3. Video proof that Hyacinth Macaw x Ara macaw cross-breeding works (not a question)...
4. What kind of medical problems are astronauts in orbital space stations equipped to handle?
5. Intestinal fortitude....
6. What is the name of this bird?
7. Ford Explorere 1998
8. Vitamin D from sunlight during a northern winter
9. Palladium refining.
10. Where did all the universe's energy come from, and where will it go?
11. Archives for Raw Solstice Data
12. Craving certain foods
13. Infra-Red rectenna power breaks the Second Law of Thermodynamics?
14. Neutralizing Acid waste
15. What would happen in space
16. GREEN HOUSE EFFECT
17. Does a rotating ring show length contraction?
18. Behind the navel
19. Do Re Me
20. Gull hypnosis
21. Significant figures
22. Roller Coaster Momentum
23. Postmature birth
24. acid battery casing repair

September 23

Wikipedia:Reference_desk/Archives/Science/2009 September 23

1. British Weights and Measures Act
2. Possible to sustain adult human entirely intravenously?
3. Hernia support
4. most oftenly mutated genes?
5. Brain cysts from cat parasites in humans
6. '99% accurate'
7. Genetics
8. Bird with no legs ?
9. NIGHT VISION GOOGLES
10. Time Dialation
11. What is the sun fusing?
12. Vaporizer gun???
13. Rocket Problem
14. 2X solution from 1X solution?
15. DNA Structure

September 24

Wikipedia:Reference_desk/Archives/Science/2009 September 24

1. are alkenes, alkynes, etc. suitable for making Grignard reagents with?
2. protic solvents and group I/II metals
3. lability of alkyne protons and NMR
4. can strong acid transform one type of alcohol into another?
5. History of large SI prefixes
6. Force and gravity
7. Snows all year round
8. Science Lab Cleaner
9. Torque Practice Problems
10. Enlarged nostrils
11. is the goverment out to get us?
12. Annulenes vs. cycloalkanes
13. Re-opening my refrigerator door
14. Uranium hexafluoride
15. Degradation of methylmethacrylates

September 25

Wikipedia:Reference_desk/Archives/Science/2009 September 25

1. How to see and edit references to material properties?
2. I used sunscreen daily for a month, why am I still tan?
3. which is the best synthesis for this product?
4. Can hydro electricity be used as a battery to store power produced by other means?
5. enones with aldehydes
6. pkas of alcohols in THF, etc.
7. reducing an alcohol without reducing a carbonyl/ketone
8. Limits of life expectancy
9. Do naps make you taller?
10. is LDA miscible in methylene chloride? (do acyl chlorides react with THF?)
11. No H1N1 deaths in Germany or China? Or just none reported?
12. Internal and External Obturator Muscles
13. Unknown units or abbreviation in an engineering document
14. Drunk but not drunk?

September 26

Wikipedia:Reference_desk/Archives/Science/2009 September 26

1. Blood thinners and broken bones
2. Could number of binary stars tell us how many planets there are?
3. Efects of a electromagnetic pulse on living organisms
4. Isotope´s half-life measurement units
5. In space no one can hear you...
6. Question about Science V Religon
7. Voltage
8. New AIDS Vaccine
9. Mining in volcanically active areas
10. Food poisoning from protein-less foods

September 27

Wikipedia:Reference_desk/Archives/Science/2009 September 27

1. Question about the article "Psychological immune system"
2. Diagrams of ancient earth
3. Volume of mercury
4. what disease is this
5. Body building
6. Tox-sick
7. Internet lines
8. Strange unit of weight, "OR" = 0.322 grams, what is it?
9. is mars shit still sterilized
10. Making acohlo from water

September 28

Wikipedia:Reference_desk/Archives/Science/2009 September 28

1. What species is this?
2. carbon monoxide and the Calvin Cycle
3. does hyperconjugation stabilise only cations?
4. Neutron bomb question
5. Source transformation..........
6. genius
7. Innovations in the last 50 years.
8. Betelgeuse Supernova
9. Surveying a pyramid
10. What really causes the resting cell membrane potential (in animal cells)?
11. Turning a car 90 degrees
12. Potatoes no good?
13. Breed of dog with the most powerful sense of smell & Police dog breed
14. emulsifiers
15. Human Mind Altering Parasites, Bugs, etc
16. Mushrooms
17. supersonic speed
18. In today's technology, building a zero Enertia vehicles (auto or airplane)
19. Effects of the acidity of juice

September 29

Wikipedia:Reference_desk/Archives/Science/2009 September 29

1. carbon monoxide as a nucleophile
2. tertiary amines and acyl chlorides
3. Male body area name?
4. Aboriginal North americans as stewards of nature
5. i have a pancreas working with a capacity of 80%!!!
6. 0mph - Warp Drive in (?) seconds
7. moment of inertia
8. Abdominal pain
9. Force Practice
10. Oral collagen
11. Electricity in a house
12. Detox, heavy metals in food
13. Cast Iron History
14. Sunburn
15. who coined the term anti matter ?
16. Hunger Mechanism

September 30

Wikipedia:Reference_desk/Archives/Science/2009 September 30

1. Molarity - Cd2+ Ions, Chemistry Help?
2. Has Mendel Sachs' theory on unifying gravity and quantum theory been well accepted?
3. Boiler insulation
4. Herds of rabbits
5. Thermal death points of different species (and genera and subfamilies) of bedbugs
6. Body Heat and Energy Generation
7. What is a "broken" nose?
8. Question in inorganic chem,help me please?
9. Calories and weight loss
10. Efficiency of a system
11. Mechanical engineering/automobile design
12. Any lubricant experts here?
13. Nuclear fallout discovered theoretically or empirically?
14. Amines as a leaving group, under acidic conditions
15. inlands/ocean coast temperaturs
16. Rottweiler pit bull mix