History: ScienceAnswers

!Answers to science questions

If you know of other science questions/answers, please ((EditPages|add them to the list))!

* [http://www.sciam.com/askexpert_question.cfm?chanID=sa005&articleID=0007F523-93FA-1CE2-93F6809EC5880000&topic_id=4|How can an artificial sweetener contain no calories?]

* [http://www.betterhealth.vic.gov.au/bhcv2/bhcarticles.nsf/pages/Protein?OpenDocument|What is protein?]

* [http://antoine.frostburg.edu/chem/senese/101/solutions/faq/why-salt-melts-ice.shtml|Why does salt melt ice?]

* [http://www.visionlearning.com/library/module_viewer.php?mid=54|What is a chemical reaction?]

* [http://www.ancientsciences.com/sciences.html|What are the names of all the sciences?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/hairspray-ingredients.shtml|What is hairspray made of?]

* [http://www.sciam.com/askexpert_question.cfm?chanID=sa005&articleID=F31002AF-E7F2-99DF-3EA7D56EB400B927&topic_id=3|Why do cats have an inner eyelid as well as outer ones?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/how-do-handwarmers-work.shtml|How do dry chemical heatpacks work?]

* [http://dopamine.chem.umn.edu/chempedia/index.php/Cold_Packs/Hot_Packs|What happens inside hot packs and cold packs?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/decaffeinating-coffee.shtml|How is coffee decaffeinated?]

* [http://www.sciam.com/askexpert_question.cfm?chanID=sa005&articleID=BF90A18E-E7F2-99DF-3BEB2706A1DFF64F&topic_id=12|Why do veins pop out when exercising, and is that good or bad?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/jello-composition.shtml|What's Jello(TM) made of?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=0002C1D9-61B4-1C72-9EB7809EC588F2D7&catID=3|Why is it that eating spicy, "hot" food causes the same physical reactions as does physical heat (burning and sweating, for instance)?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/pineapple-jello.shtml|Why can't you put pineapple chunks in Jello?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000D97F4-1B53-1452-9B5383414B7F0000&catID=3&chanID=sa005|Why is most ground brown?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/oil-and-defoaming.shtml|Why does adding oil to cooking water keep it from boiling over?]

* [http://volcano.und.edu/vwdocs/frequent_questions/group6_new.html|Answers to 200+ questions on Mt. St. Helens]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000349D4-D6FC-1CFC-93F6809EC5880000&catID=3&chanID=sa005|How do GPS devices work?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/resorcinol-test.shtml|What is a quick test for sucrose?]

* [http://antoine.frostburg.edu/chem/senese/101/organic/faq/amino-acid-test.shtml|What is a simple test for the presence of amino acids?]

* [http://www.saltinstitute.org/15.html|What is Salt?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/why-add-BHT-BHA.shtml|Why are BHT and BHA added to foods?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000D6BF9-5CDF-1D9C-815A809EC5880000&catID=3&chanID=sa005|What is quicksand?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000E4E91-92D4-1CD1-B4A8809EC588EEDF&catID=3&chanID=sa005|What is a geyser?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=0009A260-B037-1047-AD4683414B7F0000&catID=3&chanID=sa005|How can a poll of only 1,004 Americans represent 260 million people with only a 3 percent margin of error?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=0000999C-453C-151C-BF1F83414B7FFEB5&catID=3&chanID=sa005|Why don't magnets work on some stainless steels?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/why-does-alkaseltzer-fizz.shtml|What makes Alka Seltzer tablets fizz?]

* [http://antoine.frostburg.edu/chem/senese/101/gases/faq/co2-from-vinegar-and-baking-soda.shtml|How much gas is produced when baking soda react with excess vinegar?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/nitroglycerin.shtml|Why is nitroglycerin explosive?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/what-is-cellulose.shtml|What is cellulose?]

* [http://antoine.frostburg.edu/chem/senese/101/gases/faq/everyday-gas-laws.shtml|What are some examples of the gas laws in action in everyday life?]

* [http://www.npr.org/templates/story/story.php?storyId=6507966|What's a Mammal?] (click "Listen" button)

* [http://www.npr.org/templates/story/story.php?storyId=6468317|Why the Sun Makes Noses Go Ah, Ah, Ah ...choo]

* [http://www.npr.org/templates/story/story.php?storyId=6473350|Does a Bit of Steel Get Rid of That Garlic Smell?]

* [http://www.npr.org/templates/story/story.php?storyId=6430581|Arggh, Why Does the Shower Curtain Attack Me?]

* [http://antoine.frostburg.edu/chem/senese/101/gases/faq/molecules-per-volume-at-stp.shtml|How many molecules are present in a given volume of gas at STP?]

* [http://antoine.frostburg.edu/chem/senese/101/electrons/faq/orange-streetlights.shtml|Why are some streetlamps orange?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/mentos.shtml|Why do Mentos mints foam when you drop them into soda pop?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/soda-and-stomach.shtml|Can I simulate soda's effect on the stomach by pouring soda on bacon?]

* [http://antoine.frostburg.edu/chem/senese/101/measurement/faq/density-by-displacement.shtml|How can density be found by water displacement?]

* [http://antoine.frostburg.edu/chem/senese/101/measurement/faq/volume-to-mass-air.shtml|How can the mass of air in a room be computed from the room's dimensions?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/sodium-and-water.shtml|Why is the reaction between sodium and water so spectacular?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/co2-detection.shtml|How can CO2 gas be detected?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/co2-scrubbers.shtml|How do underwater rebreathers scrub CO2 from air supplies?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/hydrogen-prep.shtml|How can pure hydrogen gas be prepared and detected?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=00054ADB-8B29-153F-89CA83414B7F4945&catID=3&chanID=sa005|Why does combining hydrogen and oxygen typically produce water rather than hydrogen peroxide?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/laughing-gas.shtml|What is laughing gas?]

* [http://antoine.frostburg.edu/chem/senese/101/inorganic/faq/how-iron-rusts.shtml|How does iron rust?]

* [http://antoine.frostburg.edu/chem/senese/101/gases/faq/wet-air-dry-air-density.shtml|Why is wet air less dense than dry air at the same temperature?]

* [http://antoine.frostburg.edu/chem/senese/101/thermo/faq/thermal-insulators.shtml|How does the ice in coolers stay cool?]

* [http://www.newton.dep.anl.gov/askasci/phy99/phy99x81.htm|How does a thermos keep things cold?]

__The Universe__

* [http://www.livingwaters.com/witnessingtool/evolution.gif|Where did the Universe come from?]

* [http://curious.astro.cornell.edu/question.php?number=342|What is the mass of the Universe?]

* [http://curious.astro.cornell.edu/question.php?number=364|What was there before the Big Bang and what is there outside of our universe?]

* [http://curious.astro.cornell.edu/question.php?number=166|What is at the end of the Universe?]

* [http://www.pbs.org/deepspace/timeline/|What was the Big Bang?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000A9E60-0325-14EE-832583414B7F0000&catID=3&chanID=sa005|What are dark matter and dark energy, and how are they affecting the universe?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=0004D0F8-772A-1526-B72A83414B7F0000&catID=3&chanID=sa005|Are virtual particles really constantly popping in and out of existence?]

* [http://www.sciam.com/askexpert_question.cfm?articleID=000472F3-58DE-1480-98DE83414B7F0000&catID=3&chanID=sa005|Why is the sun's corona the hottest layer when it is farther from the sun's core than other layers are?]

* [http://map.gsfc.nasa.gov/m_uni/uni_101bbtest.html|Excellent collection of infomation on the big bang from NASA]

__Soap__

* [http://chemistry.about.com/library/weekly/aa081301a.htm|How does soap clean?]

* [http://antoine.frostburg.edu/chem/senese/101/consumer/faq/making-soap.shtml|What is soap made of?]

* [http://chemistry.about.com/cs/howtos/ht/makesoap.htm|How do you make soap?]

__DNA__

* [http://ghr.nlm.nih.gov/handbook/basics/dna|What is DNA?]

* [http://www.biotechnologyonline.gov.au/biotec/whatisdna.cfm|What is DNA?]

* [http://www.sciam.com/askexpert_question.cfm?chanID=sa005&articleID=AE5D4E37-E7F2-99DF-37DF88E744CB451A&topic_id=3|How do researchers trace mitochondrial DNA over centuries?]

* [http://www.nih.gov/sigs/dna-rep/whatis.html|What is DNA repair?]

__Computers__

* [http://www.sciam.com/askexpert_question.cfm?articleID=000B4C6B-EE1A-1214-AE1A83414B7F0000&catID=3&chanID=sa005|What makes a quantum computer so different (and so much faster) than a conventional computer?]

__Global Warming__

* [http://www.sciam.com/askexpert_question.cfm?articleID=000F22D3-EBEF-14C0-AB7083414B7F4945&catID=3&chanID=sa005|If carbon dioxide makes up only a minute portion of the atmosphere, how can global warming be traced to it? And how can such a tiny amount of change produce such large effects?]