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11
votes
2answers
22k views

Does nail-biting indicate iron deficiency?

I've seen on a lot of websites that nail-biting behaviour is due to lack of iron in the blood. I'm wondering if is this actually true, or just an urban myth which has spread and spread?
22
votes
3answers
4k views

Did Bill Nye get booed by a room full of Texans for saying that the moon reflected the suns light?

Did Bill Nye get booed by a room full of Texans for saying that the moon reflected the Sun's light instead of coming from God? This is a well-known internet rumour. Is there any evidence proving/...
5
votes
1answer
4k views

Did the French General Henri Gouraud kick and insult Saladins grave in 1920 after putting down an anti-colonial uprising?

I was told of an incident where a French general in 1920 after having put down an anti-colonial uprising, supposedly went on to insult the grave of Saladin. I attempted to find a source for that ...
8
votes
2answers
6k views

Do cats always come back home from anywhere?

It is said that no matter how far you take away a cat from home, it always come back from anywhere. Is that true? Obviously, this pre-supposes that: Home is some place that the cat lived in for a ...
14
votes
2answers
4k views

Does Sensodyne Toothpaste reduce teeth sensitivity?

The manufacturers of Sensodyne toothpaste claims their products "helps relieve the pain of sensitive teeth", using the active ingredients of (either) Strontium Chloride or Potassium Nitrate Does ...
8
votes
2answers
2k views

Are media reports about squatters' rights accurate?

So a few months ago there was a spout of stories in the UK papers pertaining to squatters, and the fact that they have just been breaking into houses and changing the locks whilst the owners had been ...
27
votes
1answer
9k views

Does wearing headphones for long periods increase dangerous bacteria in your ear?

I have heard this many times, sometimes worded as such: Wearing headphones for just an hour will increase the bacteria in your ears by 700 times I'm wondering, is this true and, if so, does it ...
14
votes
1answer
9k views

Do murderers have “the eyes of a killer”?

Has there been any research in criminology, psychology, or some other related field? Something that shows a correlation between the everyday facial expression someone wears on their face, and whether ...
231
votes
4answers
28k views

Does hot water freeze faster than cold water?

Is it true that hot water freezes faster than cold water and if so, what practical applications have there been found for this phenomenon?
10
votes
1answer
793 views

Do any Jewish organizations lobby for destruction of Israel?

I recently was in a discussion where one of the people, as an argument, claimed that Jews have been known to participate in what's activities clearly detrimental to Jews as a whole (the argument ...
29
votes
3answers
17k views

Were there any Jews among the Nazi top people?

I recently was in a discussion where one of the people, as an argument, claimed that Jews have been known to participate in activities clearly detrimental to Jews as a whole (the argument itself had ...
19
votes
2answers
8k views

Was there an eclipse when Jesus was crucified?

I've heard it claimed from various people that we have historical records for the darkness that was said to engulf the earth when Jesus was crucified. In the bible, it claims that there was, but I ...
24
votes
3answers
2k views

Is premium fuel “better”?

Is there any evidence that premium and/or high-octane fuel (petrol/gas for cars): improves performance; and/or improves engine longevity; and/or improves mileage so that money is saved on fuel, even ...
4
votes
1answer
5k views

Could white spots under fingernails be an indicator of recent lies?

I heard it said that you could tell if someone had lied recently by looking at their fingernails. White spots indicated lies, with supposedly bigger spots indicating bigger lies. I've observed white ...
22
votes
1answer
684 views

Do lower speed limits reduce gasoline usage?

There are three parts to this question: Does speed have an effect on miles-per-gallon? Is there a more accurate causal effect than speed that would also cause a connection at varying speeds? (perhaps ...
55
votes
8answers
60k views

Can the human eye distinguish frame rates above 60 Hz?

I know that frame-rates above 60fps all look the same to the human eye. Is that true? Why? If so, why do graphics cards boast anything higher than that?
45
votes
2answers
7k views

Does the BBC have TV detector vans and how can they tell if you aren't paying a license fee?

I've heard from more than a few Brits that if you own a TV but don't pay your license fee, they'll come after you with unexpected visits and or fines. Here is an example article debating their ...
9
votes
2answers
4k views

Is low dose naltrexone effective?

Amongst other claims at the Low Dose Naltrexone (LDN) Home Page is for example: Low-dose naltrexone holds great promise for the millions of people worldwide with autoimmune diseases or ...
18
votes
1answer
20k views

Is chewing your finger nails as bad as licking a public toilet seat?

I've heard the above mentioned many times growing up that chewing your fingernails will expose you to more germs than to licking a public toilet seat. Apologies for the provacative title, but here ...
40
votes
3answers
8k views

Do women prefer men with a sense of humor?

I think everyone may have heard this at one time or another, but it's said that women prefer men with a "good sense of humor". The idea is so commonly held, it even has its own abbreviation on dating ...
25
votes
3answers
18k views

Does black magic work?

In India, a large number of people believe in black magic. Black magic is the belief of practices of magic that draws on assumed malevolent powers.This type of magic is invoked when wishing ...
1
vote
1answer
1k views

Do hair and grass grow slower if you cut them during waning moon?

My father told me that if you cut hair or garden grass during waning moon, they will grow slower. Is it true?
5
votes
2answers
2k views

Do evil twins exist?

I've heard it said more than once that everyone has an evil twin out there somwhere. By "evil twin" I mean someone who is non-genetically related but bears a striking, (I realize that term is ...
8
votes
1answer
2k views

Do metal items stick magnetically to “Magnet Boy”?

In the past week or so there have been several news articles from major news sources including this one from CBS about a boy that has apparent magnetic powers (metal things stick to him). Is it ...
10
votes
1answer
805 views

How likely is it that the Ivory Billed Woodpecker is not extinct?

Currently at the JREF forums, there is a big debate going on about possible Ivory Billed Woodpecker sightings. This bird has been thought to be extinct for over 50 years, and no reliable sightings ...
5
votes
1answer
1k views

Does dichloroacetate cure cancer? [duplicate]

Possible Duplicate: Dichloroacetate (DCA) as a cure for cancer I saw this today: http://hubpages.com/hub/Scientists_cure_cancer__but_no_one_takes_notice Canadian researchers find a simple ...
33
votes
5answers
2k views

Does an “apple a day keep the doctor away”?

Is there anything special about apples that gives them particular health benefits to justify this statement we all know from childhood? Specifically: Is eating an apple more healthy than any ...
11
votes
5answers
2k views

Is mathematical modelling of investment markets a “science”? [closed]

A relative of mine works for a big bank (of bailout fame) in the investment division. We had a discussion where he claimed that what he does is actually a science. Me being an engineer called baloney ...
22
votes
1answer
7k views

Can the Rape-aXe only be removed by a doctor?

The Rape-aXe was a prototype of a female condom designed to attach itself to an attacker's penis with barbs if an attacker attempts to penetrate the woman wearing the Rape-aXe. The inventor claims ...
14
votes
1answer
2k views

Are suicide rates higher during week-ends and holidays?

In the ever growing series of questions about time or weather dependencies of crime or other kinds of behavior, I have heard several times people pretend that the suicide (and attempted suicide) rate ...
13
votes
2answers
8k views

Did Alexander the Great say the following quotation?

A common quotation attributed to Alexander the Great is as follows. Bury my body, don't build any monument. Keep my hand outside so that the world knows, one who won the world had nothing in hand ...
78
votes
1answer
7k views

Do Ostriches bury their heads in the sand

I have always believed that Ostriches when frightened bury their heads in the sand. Upon closer re-examination of this belief, I came to the following conclusions: Ostriches typically live in arid ...
21
votes
1answer
5k views

Did Vikings wear horned helmets in battles?

Do we have more archaeological evidence than the artists and writers in the Romatic period to support the idea that Vikings don't wear horned helmets in battles? http://www.straightdope.com/columns/...
13
votes
2answers
946 views

Is baldness inherited?

There are many articles on how baldness is inherited (mostly from the mother's side of the family). In the BBC Life program, the narrator linked baldness to higher levels of testosterone. Is ...
16
votes
4answers
2k views

Is perfect pitch something you're “born with?”

I always thought perfect pitch was a lot like language - it's significantly easier to learn/retain if it was learned as a child, but it's still possible to learn as an adult. However, there are some ...
13
votes
3answers
1k views

Are mitochondria “natural cancer fighting cells”?

The article Scientists cure cancer, but no one takes notice claims big pharma and the media are ignoring dichloroacetate because it's out of patent protection - but that question is answered at ...
29
votes
2answers
2k views

Is sitting dangerous?

I recently was e-mailed this link: Sitting down is killing you. Apparently this is based on a medical study and much of what is said in this range of adverts campaigning against sitting down makes ...
12
votes
1answer
1k views

Has selective breeding increased the sugar level of fruits?

It has been claimed that selective breeding has resulted in fruit that is high in sugar and just as bad as eating candy. Examples: They have selectively bred fruit trees to much higher (...
7
votes
1answer
447 views

Are there harmful levels of mercury in High Fructose Corn Syrup (HFCS)?

Are there harmful levels of mercury in High Fructose Corn Syrup (HFCS)? I was first alerted by this article which claims: She was then promptly shipped a big vat of HFCS that was used as part of ...
70
votes
3answers
8k views

Is food still safe to eat within 5 seconds after being dropped on the floor (5 second rule)?

Today in the cafeteria my friend dropped a chicken wing on the floor and immediately picked it up and ate it. Afterward he claimed that the chicken wing was still safe to eat if it was consumed within ...
5
votes
0answers
230 views

Can good smells boost our immune system?

According to aromatherapists and articles such as this, good smells boost our immune system, and conversely, bad smells deteriorate our bodies. Is there a plausible mechanism to explain why this ...
45
votes
7answers
35k views

Has France ever won a war?

France is commonly made fun of for not having won a war, for instance when they rejoined NATO and the daily mail made fun of them: Why did the French celebrate their World Cup in 1998 so wildly? It ...
17
votes
1answer
984 views

Do things taste better if they contain nutrients that the body needs?

Is there any evidence for the theory that things taste better if they contain nutrients that the body needs? I had a banana this morning and it tasted great. Is that why?
9
votes
1answer
621 views

Do web filters block more health/medical information than porn?

This article is from 2002, so it may be outdated, but it claims that when web filters are set to the more restrictive settings, such as in libraries or schools, they are more likely to block sites ...
32
votes
3answers
5k views

Does the brain use more energy during mental work?

There is the idea that mental work is tiring. Does the brain as a whole need to consume more glucose and oxygen when we are "mentally active"?
15
votes
2answers
959 views

Does regular handwashing with antibacterial soap prevent disease?

I recently heard from a preschool teacher that they now have kids wash their hands many times throughout the day. When they enter the classroom, before they eat, after they eat, after playing on the ...
10
votes
1answer
608 views

Do masters degrees in education improve teaching performance?

Bill Gates makes the claim that Masters degrees don't increase the ability of teachers in his TED talk. What are the characteristics of this top quartile? What do they look like? You might think ...
14
votes
1answer
3k views

Is it good to be germaphobic?

I have a friend (the same guy that believes calcium in water is bad for you) who is germaphobic. That is, he will avoid germs at any expense. For example, kitchen surfaces will be pristine, using some ...
97
votes
3answers
19k views

Are there any perceptible differences between the sound quality of 192 versus 320 kbps MP3 files?

I have friends that are very picky when it comes to MP3 bitrate, and will always look for the 320 kbps version of a file. However, I have never noticed any differences, they sound the same to me. I ...
3
votes
0answers
285 views

Can hiding nudity from children stunt their mental health? [duplicate]

Possible Duplicate: Any documented evidence of depiction of nudity or sex being harmful to minors? Related to this question - Is the depiction of nudity or sex harmful to minors? - I feel the ...

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