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#101 Re: This is Cool » the great gastby » 2019-11-28 20:36:40

randompasserby wrote:

the novel the great gatsby..or however you spell it has 50,000 words in the book right? but get this not one word has the letter e in it. creepy or what?

Wait, did you say that someone managed to write a 50,000 words novel without the word "the"?

#102 Re: This is Cool » Death by Quicksand - Is It Possible? » 2019-11-28 19:05:38

luca-deltodesco wrote:

there is even a creature, a small spider, than runs extremely fast, with very powerful legs and a very light body, that can run accross water because of the resistance to deform.

Did you refer to water strider? If so, that's an insect, not a spider.

#103 Re: Jokes » Is Windows a Virus? » 2019-11-27 20:25:34

Ricky wrote:

4. Viruses are usually carried, unknown to the user, along with valuable programs and systems. - Sigh...Windows does that, too.

I really hope there doesn't come a day when I meet a windows user who doesn't know that they use windows.  And what you describe above is a trojan, not a virus.

What's the difference between a trojan and a virus? And while we're at it, a worm as well.

#104 Re: Jokes » A simple test » 2019-11-27 18:50:48

iheartmaths wrote:
Daniel123 wrote:
Zach wrote:

The second one's answer is: You're first. You've just lapped the guy in last.

The person in second etc can't lap the guy in last?

I think the important thing to notice is the wording. Now, obviously, this is only my opinion, but the word overtake implies to change position in respect to the race standings, not just to physically surpass someone. So, I would say that you're right. Besides the obvious confusion caused by the fact that every racer minus the person in last can indeed overtake the person in last by lapping them, and that subsequently, the person in last can overtake the person in second to last while still being in last, the wording and context of the question seem to suggest that they meant your race position (1st, 2nd, 3rd, etc.), in which case lapping would have done nothing. big_smile

Or the race track simply doesn't have any loop.

#105 Re: This is Cool » Miscellany » 2019-11-26 14:05:49

ganesh wrote:

In the family Bovidae, the yak belongs to the same genus as cattle as well as the banteng, gaur, and kouprey of Southeast Asia.

Huh? We Indonesian think that "bull" is just the English word for "banteng". They are different?

#107 Re: Help Me ! » [ASK] About Triangle » 2019-11-24 20:28:16

Okay, thanks for your correction bob!

#108 Re: Jokes » Horse Jokes » 2019-11-24 18:44:11

Q: What does a horse say to an annoying donkey?
A: You are an math.

#110 Re: This is Cool » Miscellany » 2019-11-22 15:32:46

ganesh wrote:

The bird’s pink colour comes from its food, which contains carotenoid pigments.

Isn't carotene orange instead of pink, though?

#111 Re: Help Me ! » [ASK] About Triangle » 2019-11-22 14:32:52

bob bundy wrote:

ps. Just looked at my post and I see the diagram is a bit large.  Sorry.

It's okay, bob. Thanks for your help.

#113 Help Me ! » [ASK] About Triangle » 2019-11-21 15:31:58

Monox D. I-Fly
Replies: 4

9370d1574390168-ask-about-triangle-img20191119195818-copy-jpg
The triangle ABC is a right triangle with A as the right angle and BD is the bisector of angle B. If AB = 12 cm and BC = 15 cm, the length of AD is ....
A. 3 cm
B. 4 cm
C. 5 cm
D. 6 cm
It was a question for a 9th grader and the book hasn't covered trigonometry by name yet (As in, they don't know about the term sine, cosine, and tangent, but the books do explain the length ratio of triangle which has 45°-90°-45° angle or 30°-60°-90° angle. How to do it and explain it to them?

#115 Re: This is Cool » Math *IS* Fun » 2019-11-20 20:14:45

mathsyperson wrote:

The left image is 'fun', the right image is 'math', and they are mirror images of each other.

If someone had shown me those images out of nowhere, I wouldn't have seen it, but as I know what they're meant to be, there's definitely something there.

Well, if 'fun' is the mirror image of 'math', doesn't it mean that they are the opposite of each other?

#117 Re: This is Cool » Purplemath Algebra » 2019-11-20 15:31:57

MathsIsFun wrote:

This site is wothwhile visiting if you want lessons in Algebra: PurpleMath.com. Explanations are good.

Ah, yes. It's a good site. During my 2014-2017 work period, I often cited that site along with Math is Fun.

#118 Re: Jokes » animal jokes!!!!! » 2019-11-20 15:30:57

JohnnyReinB wrote:

(This doesn't count as an animal joke)
Q: Why did the toddler cross the road?
A: To get to the other slide!

Well, technically humans are animal, so a toddler counts as a baby animal.

#119 Re: This is Cool » Fast way to find primes. » 2019-11-20 14:38:54

RatnaPrabhu wrote:

CHIKA OFILI Test for Divisibility by 7

For Centuries All Top Mathematicians would have had a Go at finding a Test for Divisibility by 7.

Now, a 12 year old Chika Olifi has come out with a very Simple Test.

Consider your Number as AB, where B is the last Digit and A is the rest of the Digits considered as a Single Number.
Chika Ofili Test is to Calculate A + 5B. If that is Divisible by 7, then our Original Number is Divisible by 7.

For Example, . . . Consider 588 . . . A is 58 and B is 8 . . .  A + 5B is 58 + 5 * 8 = 98 . . . this being Divisible by 7, it means 588 is Divisible by 7.

This can be Proved by a few simple steps, which our Maths Fans can try out.

RatnaPrabhu, Ahmedabad, INDIA

That would be useful to answer some circular questions.

#121 Re: Dark Discussions at Cafe Infinity » ??? » 2019-11-19 19:59:07

luca-deltodesco wrote:

CTHULHU COMMANDS THEE! SMITE DOWN THY ENEMIES IN THE NAME OF YOUR GOD BA'AL ZEBÛB.

on another note.. weee smile

Ah, so the name "Ba'al" was derived from "Beelzebub"... Now it makes sense why Baalmon evolved to Belzebmon in Digimon Xros Wars, despite said series hasn't aired yet when the above post was made.

#122 Re: Dark Discussions at Cafe Infinity » What do you do? » 2019-11-19 18:52:40

John E. Franklin wrote:

I've had about 30 jobs in my life! No kidding, either.
Right now I'm looking for another one.

Wow. How old were you when that post was made?

#123 Re: This is Cool » Miscellany » 2019-11-18 15:33:11

ganesh wrote:

Unlike most insects, mosquitoes in the pupal stage, called tumblers, are active and free-swimming.

Now, what chrysalis would be scarier than a free-moving chrysalis of a vampire bug...

#124 Re: Jokes » Aircraft Maintenance » 2019-11-17 19:51:42

Mr T wrote:

These are things that people actually said in court, word for word.

Q: What is your date of birth?
A: July fifteenth.
Q: What year?
A: Every year.

Q: How old is your son-the one living with you.
A: Thirty-eight or thirty-five, I can't remember which.
Q: How long has he lived with you?
A: Forty-five years.

Q: What was the first thing your husband said to you when he woke that morning?
A: He said, "Where am I, Cathy?"
Q: And why did that upset you?
A: My name is Susan.

Q: Now doctor, isn't it true that when a person dies in his sleep, he doesn't know about it until the next morning?

Q: The youngest son, the twenty-year old, how old is he?

Q: Were you present when your picture was taken?

Q: Was it you or your younger brother who was killed in the war?

Q: Did he kill you?

Q: How far apart were the vehicles at the time of the collision?

Q: You were there until the time you left, is that true?

Q: How many times have you committed suicide?

Q: She had three children, right?
A: Yes.
Q: How many were boys?
A: None.
Q: Were there any girls?

Q: You say the stairs went down to the basement?
A: Yes.
Q: And these stairs, did they go up also?

Q: How was your first marriage terminated?
A: By death.
Q: And by whose death was it terminated?

Q: Do you recall the time that you examined the body?
A: The autopsy started around 8:30 p.m.
Q: And Mr. Dennington was dead at the time?
A: No, he was sitting on the table wondering why I was doing an autopsy.

So, the lawyers are either:
a. doesn't know math, or
b. doesn't believe that people die if they are killed

#125 Re: This is Cool » Yeah! » 2019-11-17 15:42:37

mathsyperson wrote:

The fact that it was a mock means that it was only a 'practice' paper that doesn't contribute to anything more than deciding the predicted grade of the student and which tier they should be entered in for the real exam.

In other words, a "tryout"?

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