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10 Common Misconceptions Dispelled [Pic]

Hits: 56316 | Rating: (3.2) | Category: Science | Added by: fancylad
Page: 1 2 3 4 Next >   Jump to: Bottom    Last Post
Fojos
Male, 18-29, Europe
 152 Posts
Monday, October 04, 2010 2:59:48 PM
"Hi Lauryn, Before you get all condescending, have you been to the equator and seen for yourself? I have. In ecuador to be exact. In the southern hemisphere it spins clockwise, on the equator it drains straight down, and in the north it spins anticlockwise. I didn't believe it untill I actually saw it with my own eyes. I was pretty skeptical (have a science degree), but yeah, it actually happens. "

I've seen all those scenarios where I live.

Fojos
Male, 18-29, Europe
 152 Posts
Monday, October 04, 2010 2:59:05 PM
The way the water circles depends on how the toilets are built, nothing else.

jayebee
Male, 18-29, Australia
 26 Posts
Monday, October 04, 2010 1:13:45 AM
Lauryn
Female, 18-29, Australia

A perfect example of why you SHOULD NOT believe everything you see.... In aus our water doesnt circle it just goes straight freakin down! and we are not on the equator,.,.,., Dont be so gulable(sp) my dear ;)

Hi Lauryn, Before you get all condescending, have you been to the equator and seen for yourself? I have. In ecuador to be exact. In the southern hemisphere it spins clockwise, on the equator it drains straight down, and in the north it spins anticlockwise. I didn't believe it untill I actually saw it with my own eyes. I was pretty skeptical (have a science degree), but yeah, it actually happens.

Wai-Yu
Female, 13-17, Canada
 247 Posts
Sunday, October 03, 2010 7:44:44 PM
... I think I'll go throw out my twinkies now.

Vindictive
Female, 18-29, Midwest US
 1079 Posts
Saturday, October 02, 2010 8:57:29 AM
i knew all of this except the meat/blood thing. good to know!

Lauryn
Female, 18-29, Australia
 440 Posts
Saturday, October 02, 2010 3:10:29 AM
Rufio1980
Male, 18-29, Europe
10 Posts Friday, October 1, 2010 9:14:46 AM
The toilet one is wrong! I've seen experiments on TV demonstrating the direction of the water each side of the equator and it does go in opposite directions. It also doesn't spin at all when you're on the equator itself.

A perfect example of why you SHOULD NOT believe everything you see.... In aus our water doesnt circle it just goes straight freakin down! and we are not on the equator,.,.,., Dont be so gulable(sp) my dear ;)

OldOllie
Male, 60-69, Midwest US
 12979 Posts
Friday, October 01, 2010 10:06:52 PM
"So what about white dwarfs?"

They still have a dominant color depending on their temperature. Newly formed white dwarfs are quite hot and thus are blue. As they cool they go through green, yellow, orange, red, and gradually fade to infra red (brown dwarfs).

A star closely approximates a blackbody in its energy distribution curve. The wavelength of peak of the curve depends on temperature. There's a good article on it here.

For a star to be white, it would have to radiate equal amounts of energy at all visible wavelengths, which never happens in nature.

Rorschach_
Male, 40-49, Western US
 115 Posts
Friday, October 01, 2010 2:02:05 PM
Now you know. And knowing is half the battle

duffytoler
Male, 40-49, Midwest US
 5220 Posts
Friday, October 01, 2010 11:05:01 AM
Good to see one of these that doesn't suck! Seems like there's way too many of these "Fun Facts" lists that are all or partly BS.

GiveChase
Female, 18-29, Canada
 532 Posts
Friday, October 01, 2010 9:59:13 AM
Sushi isn't raw fish, it's sliced raw fish....?

And even though that meat juice isn't blood, it still grosses me out.

Rufio1980
Male, 18-29, Europe
 11 Posts
Friday, October 01, 2010 9:14:47 AM
The toilet one is wrong! I've seen experiments on TV demonstrating the direction of the water each side of the equator and it does go in opposite directions. It also doesn't spin at all when you're on the equator itself.

Vimto
Male, 40-49, Europe
 2434 Posts
Friday, October 01, 2010 9:01:12 AM
Most of this nicely ripped from QI.

skullgrin
Male, 18-29, Eastern US
 915 Posts
Friday, October 01, 2010 7:21:57 AM
the tounge thing is not 100% wrong...at least not for me. if i touch something sweet to the tip of my tounge i can taste it, but if i touch it to the sides or the back i can not. If i touch bitter chocolate to the tip of my tounge i can not taste it, but i will taste it if i place it on the back of my tounge. I know that the tounge has taste receptors through out the entire surface, but it seems as if those zones really do have more of a certain type than others

meepmaker
Male, 30-39, Southern US
 6716 Posts
Friday, October 01, 2010 7:05:30 AM
And now we know.

tuesdayfool
Female, 13-17, Europe
 172 Posts
Friday, October 01, 2010 6:12:20 AM
""All stars have a predominant color from deep red to blue. No star is white."

So what about white dwarfs?"

I was thinking the same...

Ari--
Female, 18-29, Europe
 119 Posts
Friday, October 01, 2010 6:08:21 AM
we even had a picture of a tongue and it's taste zones in our biology book. yay german education system.

xxPinkxx
Female, 18-29, Canada
 3842 Posts
Friday, October 01, 2010 4:29:04 AM
only one i believed before this was the toilet one, and i was kind of dissappointed. bart simpson did it on the simpsons.

kummi90
Male, 18-29, Europe
 543 Posts
Friday, October 01, 2010 1:36:16 AM
It's true that the tongue doesn't have strict taste zones, however the tongue DOES have zones where some of the buds are FOCUSED...

Selfluminous
Male, 18-29, Asia
 86 Posts
Friday, October 01, 2010 12:57:41 AM
@OldOllie i'm pretty sure that the peak wavelength of 475-500 nm is blue green, mixture of which is white, after scattered by air molecules it will shift to the yellow region of spectrum. Never mind that, your conclusion "no star is white" is just wrong. And also, they didn't say that Coriolis effect in flushing toilet is unreal.You are right, the effect is greater the further away from the equator. Just do a simple calculation of earth's radial freq with water flow's velocity and the swirling radius of water you will see that the resulting moment of Coriolis force is in the order of 10^(-7)N.m (maybe overestimating it) and compare it to the initial momentum of the water itself. The things that really determine the direction in which water leaves your toilet are the shape of the bowl and the angle at which the liquid initially enters that bowl. The butterfly flapping wings is also real and observable lol

shneeblefish
Male, 18-29, Europe
 512 Posts
Friday, October 01, 2010 12:20:39 AM
"All stars have a predominant color from deep red to blue. No star is white."

So what about white dwarfs?

Samen28
Male, 13-17, Western US
 11 Posts
Thursday, September 30, 2010 11:05:22 PM
8 is wrong, there are no eggs in Twinkies, and likely little flour as they use a near fully artificial sponge cake and icing recipe now-a-days. I'm not sure the shelf life, but I wouldn't be surprised it ~1 month was an accurate estimate.

OldOllie
Male, 60-69, Midwest US
 12979 Posts
Thursday, September 30, 2010 10:56:44 PM
Okay, 6 and 9 are wrong.

The sun has a peak wavelength of about 475-500nm corresponding to a yellow-green color. All stars have a predominant color from deep red to blue. No star is white.

The Coriolis effect is small on small quantities of water, but it is real and observable. Take a round tub; drill a hole in the center of the bottom; put it on a couple of saw horses; put a stopper in the hole from below; fill it with water; let it stand for a few hours; and pull the plug. The water will start spinning counter-clockwise in the northern hemisphere, and clockwise in the southern hemisphere. The effect is more pronounced the farther you get from the equator.

If you start the water swirling in the opposite direction, it will continue in that direction since you have imparted more angular momentum to the system than what was there from the Coriolis effect. However, for a toilet, it's better to go with the water's natural tendency than to fight against it.

freddyferret
Male, 40-49, Midwest US
 11590 Posts
Thursday, September 30, 2010 10:53:11 PM
A couple of these are wrong.

ladyfiaragc
Female, 18-29, Midwest US
 16 Posts
Thursday, September 30, 2010 10:08:28 PM
@ Maromi; I completely agree completely. 4 and 10 MUST be false. *slaps her hand on the table*

NanGoneBanan
Female, 18-29, Canada
 127 Posts
Thursday, September 30, 2010 10:06:25 PM
As I was reading these I heard Sheldon's voice speaking them out to me in my head, I think I've been watching too much of The Big Bang Theory.

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