Share an interesting random fact

[A Free Man]

In the original S/G/C pokemon games (haven't played the re-makes so I don't know) the day-care center, where the breeding is done, is on Route 34.

Aren't the originals red, blue and yellow?

 

[A Free Man]

For there to be a 100% chance two people share the same birthday there must be 366 people.
A 99% chance is reached by 57 people and a 50% chance by just 23.

Okay, I get the 100% statistic and agree it makes perfect sense (except for the February 29th babies, then it's 367). I'm not getting the other two. 365 x 0.99 = 361.35. My brain says you'd need 362 (rounding up) people. Same for the 50% statistic. How do these last two statistics work?

Because you are working out 99% and 50% of 365 your not actually calculating any probabilities there. Just doing an irrelevant equation.

 

[A Free Man]

For there to be a 100% chance two people share the same birthday there must be 366 people.
A 99% chance is reached by 57 people and a 50% chance by just 23.

Okay, I get the 100% statistic and agree it makes perfect sense (except for the February 29th babies, then it's 367). I'm not getting the other two. 365 x 0.99 = 361.35. My brain says you'd need 362 (rounding up) people. Same for the 50% statistic. How do these last two statistics work?

Because you are working out 99% and 50% of 365 your not actually calculating any probabilities there. Just doing an irrelevant equation.

For there to be a 100% chance two people share the same birthday there must be 366 people.
A 99% chance is reached by 57 people and a 50% chance by just 23.

This is not true. First of all, there can't be a 100% chance. If you pick 366 random people, you can still be statistically unlucky to not have the same birthday. Heck, even if you pick 3000 random people you still have no guarantee. Even though it is statically unlikely, you never get a 100% chance.

Not sure about the following, but if you say you have a 99% chance you share the same birthday with 57 random people, then you are saying the other 308 days fall within the 1% margin, meaning about 80% off all people have a birthday within the same 57 days of the year. That is just... weird.

I haven't actaully checked the other two statistics but are you sure about that first one? Because if you have 3000 people there is no possible chance that none of them share a birthday. Think about it... If there are more people then there are days in the year at least one of them will have to share a birthday with another. Statistically speaking that is a 100% probability.

 

[4RM3D]

I haven't actaully checked the other two statistics but are you sure about that first one? Because if you have 3000 people there is no possible chance that none of them share a birthday. Think about it... If there are more people then there are days in the year at least one of them will have to share a birthday with another. Statistically speaking that is a 100% probability.

I actually already mentioned this in a reply further back in this thread. The premise wasn't explained very well. When I read the wiki page, I understood what the issue was. See my original reply below.

Just to make life easier I'll link the wiki page = http://en.wikipedia.org/wiki/Birthday_problem

I apologise if i explained poorly, I'm just an interested ignoramus.

I first learnt about this at the royal institution Christmas lectures in the nineties. Some damn good stuff on them.

I understand what went wrong, now that I have read the wiki page. As stated:

"The birthday problem asks whether any of the people in a given group has a birthday matching any of the others ? not one in particular."

Now it makes sense.

 

[CrazyGirl17]

Not sure if this is up yet, but here goes: Jackie Chan voices General Chang in the Cantonese version of Mulan, and he even provides his singing voice.


...And now I kinda want to see the Cantonese version of the movie...

 

[Burst6]

the color purple was invented by crayola. Also the image of santa that we have locked in our minds forever, was made by coca-cola for a marketing campaign.

Are you sure about the purple one?

I learned in history class that purple was made in ancient Phoenicia. Apparently they used the juice from snails to make it, and that a small bottle was about as rare and expensive as gold. Because of the cost it was generally used by Royalty and nobles.

 

[FernandoV]

There is a planet made of diamonds

No, it's A diamond, not made OF diamonds.

 

[BiscuitTrouser]

There is a planet made of diamonds

Despite their size, perfect diamonds are composed of a single molecule.

I don't know if the diamond planet is a single molecule, it'd be pretty awesome if it was...

That doesnt really make chemical sense :/ Its a single molecule in the same way any covalent latice is a single molecule. Many atoms of carbon form all 4 bonds with eachother in a diamond shape that repeats over and over. Its one huge structure, but its one molecule in the same way EVERYTHING made of a single element in a lattice or block is one molecule.

Anyway:

Pink as a colour doesnt exist. Look at a rainbow. See any pink? Purple maybe. The actual fact is pink is where violet and red touch from opposite sides, as a true rainbow the way we see a colour wheel is a complete circle. Pink stands in for all other frequencies of the electro magnetic spectrum.

 

[Daverson]

There is a planet made of diamonds

Despite their size, perfect diamonds are composed of a single molecule.

I don't know if the diamond planet is a single molecule, it'd be pretty awesome if it was...

That doesnt really make chemical sense :/ Its a single molecule in the same way any covalent latice is a single molecule. Many atoms of carbon form all 4 bonds with eachother in a diamond shape that repeats over and over. Its one huge structure, but its one molecule in the same way EVERYTHING made of a single element in a lattice or block is one molecule.

I don't see how that's any different from what I said? It's a molecular lattice repeating endlessly. The entirety of the crystal is held together by intramolecular bonds, as opposed to a crystal like ice, which is formed from distinct molecules held together by intermolecular bonds. That's why ice melts easily, and diamond doesn't!

It's not just that it's a single elements that do this, you can have similar crystals made of several elements, such as rubies, which are made of a repeating lattice of Aluminium, Oxygen and Chromium.

In the original S/G/C pokemon games (haven't played the re-makes so I don't know) the day-care center, where the breeding is done, is on Route 34.

Aren't the originals red, blue and yellow?

Just red and blue. Yellow was made afterwards as a tie in to the tv show (or was it the comic? I'm not sure which came first)

...God, I feel old now...

 

[BiscuitTrouser]

There is a planet made of diamonds

Despite their size, perfect diamonds are composed of a single molecule.

I don't know if the diamond planet is a single molecule, it'd be pretty awesome if it was...

That doesnt really make chemical sense :/ Its a single molecule in the same way any covalent latice is a single molecule. Many atoms of carbon form all 4 bonds with eachother in a diamond shape that repeats over and over. Its one huge structure, but its one molecule in the same way EVERYTHING made of a single element in a lattice or block is one molecule.

I don't see how that's any different from what I said? It's a molecular lattice repeating endlessly. The entirety of the crystal is held together by intramolecular bonds, as opposed to a crystal like ice, which is formed from distinct molecules held together by intermolecular bonds. That's why ice melts easily, and diamond doesn't!

It's not just that it's a single element that gives it this property, you can have similar crystals made of several elements, such as rubies, which are made of a repeating lattice of Aluminium, Oxygen and Chromium.

I know but when you think about it such an occurence is very common. It isnt special that a pure element is a single molecule, or as you said other compounds can form in such a way, it just struck me as something that sounds rare and impressive but actually is far more common than you would think.

 

[Daverson]

*snip*

I know but when you think about it such an occurence is very common. It isnt special that a pure element is a single molecule, or as you said other compounds can form in such a way, it just struck me as something that sounds rare and impressive but actually is far more common than you would think.

It is pretty common, but it's an interesting fact, because not many people know it! =D

 

[Ayrtonh]

In New York, one can tackle any other person, regardless of most anything, by simply shouting "Red Rover". By their law it is considered "Fair warning"

 

[doomspore98]

the color purple was invented by crayola. Also the image of santa that we have locked in our minds forever, was made by coca-cola for a marketing campaign.

Are you sure about the purple one?

I learned in history class that purple was made in ancient Phoenicia. Apparently they used the juice from snails to make it, and that a small bottle was about as rare and expensive as gold. Because of the cost it was generally used by Royalty and nobles.

The name was invented by crayola. sorry about the confusion

 

[Murderiser]

And now for the fact:

the color purple was invented by crayola. Also the image of santa that we have locked in our minds forever, was made by coca-cola for a marketing campaign.

Are you sure about the purple one?

I learned in history class that purple was made in ancient Phoenicia. Apparently they used the juice from snails to make it, and that a small bottle was about as rare and expensive as gold. Because of the cost it was generally used by Royalty and nobles.

The name was invented by crayola. sorry about the confusion

No it was not. Even a cursory glance at the wikipedia article would inform you that it is derived from an Old-English word, which is in turn derived from Latin.

Purple as a dye has existed for well over two millenia and you thought that until crayola came along, no-one knew what to call it? I think you ought to slap whoever told you that was true.

And now for the fact(s): The current name in historical circles for the Aztec is actually 'Mexica' and they didn't even come up with their own civilization; everything you associate with them is actually derived from an earlier bunch of meso-americans, the Toltec.

Hungary is not named after the Huns. It is named for another group of nomadic peoples, the Onunguns.

 

[suitepee7]

the portuguese man o'war cannot move by itself, it relies on the tides and currents.

also, santa used to be green, but a tie in with coca-cola is one of the reasons he took to wearing red. it is not purely coca-cola, but they heavily influenced it

 

[tthor]

It's impossible to lick your own elbow

I actually did this once, (but to be fair, my right arm is double jointed, which kinda helped)

 

[General BrEeZy]

Pirates wore eye-patches not just to cover wounds. Yeah, that occurred ON OCCASION, but their primary purpose was to always have one eye adjusted to darkness, making them more efficient plunderers when under a ships deck, where lighting was low or nonexistent.

 

[bluepotatosack]

America has never lost a war when donkeys were in use.

 

[annilator666]

The most money ever paid for a cow in an auction was $1.3 million.

 

[Hasido]

you can count to 1023 on your fingers without committing anything to memory.