The science of matter and the changes it can undergo.

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Can silicon-based life exist? [closed]

My friend is just trying to convince me, that silica based life was discovered on both Europa (meaning the satellite of Jupiter) and Mars. I have strong tendency to doubt anything someone is trying ...
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57 views

Does “liquid-injection damp-proofing” work to water-proof walls?

There are technologies for sale, especially in Germany, to drill holes in the walls of a cellar, and inject into the concrete or masonry a liquid, such as Sodium Silicate The manufacturers promise ...
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1answer
386 views

Does drinking water from plastic bottles contaminate your blood? [duplicate]

I wanted to know if there is any research on the issue Daniel Vitalis raises on bottling water here (5th minute and on). He claims that if one drinks water bottled in plastic bottles one will ...
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1answer
169 views

Was there a cocktail named 'Mickey Slim' that used DDT as an ingredient?

According to Wikipedia, a Mickey Slim is a cocktail made by combining gin with "a pinch of DDT" which provided an experience similar to (the original) absinthe. The source appears to be The Dedalus ...
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726 views

Would baking soda and vinegar clean hair, and how?

There's a popular hair cleaning regime circulating in the 'green' blogs called the "no 'poo method." Rather than using shampoo, one rinses the hair with a tablespoon of baking soda in a cup of water, ...
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1answer
127 views

Did James Lovelock deny that CFCs destroyed ozone?

In the discussion threads of one of the answers to this meta question How much can we trust peer reviewed scientific literature? EnergyNumbers alleged that James Lovelock had originally denied that ...
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2answers
2k views

Is Coca-Cola effective at removing blood-stains?

From My Perfect Automobile: In many states the highway patrol carries two gallons of Coke in the trunk to remove blood from the highway after a car accident. I doubt it's real. Does Coca-Cola ...
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1answer
487 views

Is testosterone responsible for typically “male” behaviour?

On the English Language and Usage stack exchange, two people asked what was meant by "testosterone-charged", as in the following quote, from the story "2 States: The Story of My Marriage" by Chetan ...
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2answers
259 views

Are there currently any tests available to diagnose fluoride or fluorine toxicity?

That's what I read here: http://www.merckmanuals.com/professional/nutritional_disorders/mineral_deficiency_and_toxicity/fluorine.html No tests to diagnose toxicity are available.
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2answers
311 views

Why doesn't the high amount of fluoride found in tea or tobacco prevent dental caries? Or does it have to be hydrofluorosilicic acid? [closed]

On PubMed.gov http://www.ncbi.nlm.nih.gov/pubmed?term=PMID%3A%2016979289 "Determination of exposure and probable ingestion of fluoride through tea, toothpaste, tobacco..." "Levels of water soluble ...
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217 views

Are bleaching powders effective cleaning agents?

The claim from the manufacturer: Have you seen a stain on your clothes that you can't seem to remove? Don't fear! Vanish Oxi Action Powder contains Oxi Powerlift which removes all types of stains, ...
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125 views

Is typical indoor concentration of VOC correlated to concentration of CO₂?

A vendor of VOC (Volatile Organic Compound) sensor claims the VOC concentration correlates highly to CO₂ concentration in a typical conference room: Figure 2 illustrates the correlation of true ...
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364 views

Is bamboo charcoal safely edible?

Bamboo charcoal is made up of pieces of bamboo, which are taken from plants five years or older and burned inside an oven at temperatures over 1000°C. Bamboo charcoal is well known about its high ...
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1answer
408 views

Do the water filters in Pure & Clear filters work?

Dr Mercola advertises Pure & Clear Filters: Pure & Clear filters use a “selective filtration” process rather than a mechanical one for a couple of very important reasons. This advanced ...
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1answer
877 views

Is it possible to stack liquids of different density scale on top of each other?

I came across q picture on the net and now I'm skeptical that it's possible. I know liquids from different density scale wouldn't mix easily but stacking them on top of eachother with perfectly ...
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11k views

Is Paraffinum liquidum (mineral oil) in cosmetics dangerous?

Paraffinum liquidum can be found in a lot of cosmetic products. Some articles say it is harmless but the other half said it causes harmful effects such as the premature aging of the skin. Examples ...
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1answer
613 views

Did Donald Duck accidentally use methylene in a comic before it was discovered?

From Good Comics: In 1963, the Disney Studio learned just how wide and faithful a readership Barks had. A letter arrived from Joseph B. Lambert of the California Institute of Technology, ...
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1answer
620 views

Does Dimethyl Sulfoxide (DMSO) speed the healing of wounds?

My wife is currently suffering from a small ulcer which is refusing to heal and a friend of hers suggested a topical application of DMSO to improve healing time. Please not that I am explicityl not ...
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1answer
619 views

Does lemon juice slow the oxidation of guacamole?

It is common belief that adding citrus juice (or in some claims, any acid, including ascorbic acid/vitamin C, vinegar, tomatoes, etc) to guacamole will reduce browning. Examples of the claim: ...
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112 views

Do reusable plastic water bottles leach dangerous chemicals? [duplicate]

Possible Duplicate: Is refilling water bottles bad for you? Several articles claim that the 'chemical leaching' from reusable clear plastic water bottles leads to toxins in the water, not ...
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1answer
3k views

Is Cesium-137 detectable in all wine bottled after the 1940's?

In the White Collar TV Episode Bottlenecked it was claimed that a test of all vintage wines bottled before the ABomb would not contain any Cesium-137 but wine bottled in the years since all contain ...
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2answers
408 views

Would tying sulphur to the feet of birds allow you to burn down a house?

According to legend: The last vengeance took place in the year 946 when Olga traveled around the land of the Drevlyans in order to gather tributes. She besieged the town of Iskorosten, which ...
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2answers
1k views

Does Pureit Polisher remove the chlorine from chlorinated water?

This purifier claims to produce 100% pure water. They use chlorine. Chlorine, when taken in for a long period, is bad for health. http://www.pureitwater.com/IN/4stage-purification Polisher ...
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1answer
5k views

Is biting a gold coin a working method to verify its authenticity?

Julia Murray & Kelsey Serwa In movies you commonly see treasure hunters, pirates, thieves, ... bite down on a gold coin to verify it's real gold. (Gold Medal winners often pose with the ...
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2answers
494 views

Do harmful chemicals migrate from the container into the food if you microwave the food in a plastic container?

In a comment to the best answer to question 582, Muhd writes: "I would add that it is also unhealthy if you microwave in something that is not microwave safe as toxic chemicals could migrate into the ...
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1answer
1k views

Is the Coca-Cola recipe a secret?

Is the Coca-Cola recipe a secret? I would like to draw attention to the distinction between a recipe and composition: Composition: a list of all ingredients, including quantity/proportion. ...
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164 views

Are plastics making us fat and giving us diabetes?

A recent widely reported news story (example report from the Independent) suggested that one explanation for the modern rise in obesity was not too much food or two little exercise but many of ...
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2answers
2k views

Would a human's blood suddenly boil (or eyes/body explode) in a vacuum?

I was once given a question in the popular quiz-show game, You Don't Know Jack, that went something like: You find yourself suddenly ejected into space. Which of these gruesome things happens first? ...
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1answer
219 views

Does the caramel colouring previously used in Coke and Pepsi in California cause Cancer?

California has recently made legislative changes that required Coke and Pepsi to affix cancer warning labels to their soda products. From the news story: A representative for Coca-Cola, Diana ...
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1answer
837 views

Do airplanes release biological or chemical agents, forming trails?

Since the topic of the week is conspiracy theories, here's one that I've had re-iterated at me a few times. Supposedly these white stripes after airplanes is created by airplanes releasing biological ...
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1answer
406 views

Are added nitrates and nitrites in our diet harmful?

It is widely claimed that meat-curing agents containing nitrates or nitrites are dangerous food additives. This site puts them in a top ten list of bad food and recommends avoiding cured meats, ...
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1answer
481 views

Are synthetically produced chemicals not found in nature more likely to be harmful than naturally occurring ones?

Since everything is made from chemicals the often made claim that we should avoid food that doesn't contain chemicals doesn't make any sense. But the underlying idea that synthetic chemicals are ...
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178 views

Are dioxins the most toxic chemicals known to science?

Dioxins are implicated in The Seveso disaster in Italy and the lingering disputes about deformities and birth defects caused by the use of the Agent Orange defoliant in the Vietnam war (Wikipedia ...
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1k views

Man using “water as fuel” for a welding machine? (H₂O → HHO)?

I saw a while back a YouTube video that appears to show a news report of a man who patented technology to turn water into HHO. The video makes some big claims — 161 km (100 mi.) on 0.1 L (4 ...
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1answer
2k views

Can you die by absorbing cyanide through the skin?

A friend of mine was talking about The Iceman, a killer that supposedly used cyanide absorbed through the skin as his murder weapon: Kuklinski favored the use of cyanide as it was quick kill ...
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1answer
830 views

Should I leave my dry cleaned clothes in the plastic? [closed]

My first job (in high school) was in a dry cleaners. The owner impressed upon us the fact that the packaging was a part of the "system" for taking the absolute best care of your clothes. He would tell ...
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3answers
10k views

Do atoms exist?

There are plenty of examples of people doubting ([1], [2], [3], [4], [5]) or denying ([6], [7], [8]) the existence of atoms. Is there any compelling evidence for the existence of atoms? Has anyone ...
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2answers
2k views

Does skimmed milk have more added chemicals than whole milk?

I've heard that skimmed milk has more added chemicals than whole milk. Is this true?
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3k views

Are old glass panes thicker on the bottom due to “flow”?

I ran into this common belief today, and was surprised that it has not been addressed here before. I think this belief is common enough that most anyone has heard it. Especially if they are touring ...
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1answer
616 views

Can a dead mouse sealed in a can of soda dissolve into a jelly-like substance in one year?

A soft-drink company argued in a "dead mouse in a can of soda" case that an intact body of a dead mouse is unlikely to be found inside a can of soda because the dead mouse would have been dissolved by ...
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1answer
353 views

What is the explanation for the Mentos-Diet Cola fountain? [closed]

Adding Mentos confectionery to fizzy drinks such as Diet Cola produce a surprisingingly vigorous reaction, which have lead to many videos. Explanations such as the ones in American Journal of ...
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1answer
271 views

Can processed coconut extract, corn, tree sap, potatoes and grass be combined to be used as a calcium and lime remover?

This product claims to be an effective calcium and lime remover. Is this going to be any more effective than a spray bottle with water and some elbow grease? They claim it uses a thing called ...
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2answers
1k views

Is Oxycontin pharmaceutical-grade heroin?

I was watching a documentary about the Oxy pipeline from Florida to Kentucky this weekend where a sheriff made the claim that Oxycontin was pharmaceutical-grade heroin. This is not the first time I ...
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1answer
366 views

Are silver dental fillings safe?

Are silver tooth fillings safe for a person's health? My dentist says they are safe for my health. My general practitioner has no opinion on the matter. Some countries have banned or restricted ...
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1answer
4k views

Can table salt damage a dishwasher?

The manual for my dishwasher as well as the warning sign on a box of dishwasher salt says that you should never load food salt into the water softener because it will damage the ion exchanger. Given ...
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2answers
2k views

Is chlorine in water absorbed quickly through the skin?

I recently saw a demonstration of a water filtration and purification system. In one of the demos two glasses were filled with tap water and then someone put three fingers into one of the glasses and ...
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1answer
851 views

Is an ice-cream tub made of a single molecule?

Background In my answer to another question, I repeated a claim made to my class by my high school chemistry teacher. I didn't reference it, because the relevant FAQ suggests high school science can ...
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1answer
7k views

Is margarine “one molecule away from plastic”?

I've heard the claim that "Margarine is only one molecule away from being plastic" several times. Usually from friends who think they've heard it from some reliable source. I've also read a couple ...
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4answers
2k views

Does elemental mercury give off toxic vapor?

This video claims to show mercury giving off a steady stream of toxic vapor when viewed with a UV light. http://www.youtube.com/watch?v=JABbofwD3MI There is also a Reddit discussion about this ...
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1answer
30k views

What is monoatomic gold?

Over the weekend I heard an acquaintance mention something called "monoatomic gold", followed by a bevy of fantastic and surprising claims about the substance, what it does, and how it was discovered. ...

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