Lightmeow

Where? I only find mock-ups, CAD drawings and cartoons.

I could give you a way to make them, but it involves strapping a chain saw engine to the back of one skate, but it works. I am working on a way to make them work on both blades. Anyone have any suggestions on a smaller motor I could use for mine, because the chain saw engine gives you a little to much torque.

Here is two links of what it looks like:

www.youtube.com/watch?v=50b_DKRothM‎

Hello, just a question, do you go to a public or private school? What is the degree of difficulty in the work? Are you taking all honors classes?

Answer those questions. Now, what food do you eat... I feel like you must not be happy about yourself if you need to ask these questions. Do you have a cell phone, do you surround yourself with technology? How much do you read?

I don't believe at all that you need to take drugs to become smarter. It is not "natural". What will happen is you will gain a dependency on these drugs, and will have to take them all the time. It's like come on, 15 pills at least a once a day!!! I don't know, but I say listen to music. Breath oxygen(learn how to breath like a baby again, THATS HOW YOU INCREASE YOUR OXYGEN FLOW, baby's fill their whole lungs with oxygen, not just their chest). Get in some good habits. Have good hygiene. Exercise, and do stuff that is healthy. Hey, if you want to increase your memory capacity, play memory games. If you want to increase your reaction times, play fast games, get a hobby like four wheeling. If you want to help your over all thinking, play chess once a day against the computer. If you want to increase your vocabulary, play scrabble against yourself with a speller, or go to a dictionary site and learn one word a day, or how many you want.

What I'm saying don't do, is take the drugs. I am a freshman as well, and I am probably the nerdiest person to ever walk into my school. I read all the time, so I learn new stuff all of the time. Because I'm reading higher level science books or story books, I gain a bigger vocab. I run cross county so I could re make my breathing so I could do deep breathing. Hey, also get into the arts. I make music, and am probably the best artist in my grade.

All I am saying is smarts or the ability to think outside of the box isn't something you can pray for or have a doctor give you a pill for. The smart people had to work for were they are now.

Joshua

Hello,

I was doing my math team practice packet, and in the writers choose section, I had three questions on the problems.

Lets see, for the first question was this: How many integers (10<x<100) are increased by nine when their digits are reversed. So my answer was eight numbers; the numbers 12, 23, 34, 45, 56, 67, 78, and 89, and I know that is right. I had to do it all out by hand, until I noticed a pattern which was you take the last digit of the number, make that the first digit of the next number, and have the number in the tens place be one less than the one in the ones. It took me about five minutes to reach that conclusion. Now my question would be, is there a way to find out the answer to this question mathematically without having to do it all out like I did. Say if they gave me a different problem(I made this one up), like how many integers are decreased by 6 when their digits are reversed, how would I find that out using algebra.

The second question was, how many natural numbers give a remainder of two when divided into 83. My answer was 4 numbers, the numbers being 3, 9, 27, 81. Again, there was a simple pattern. it being 3^x<83. Again, how would you do that mathematically, without having to d it all out. Say you had another problem, how many natural numbers give a remainder of three when divided into 275(I just picked a random number). Could you help me there?

The third question would be N is a 5 digit number 8A65B in which A and B are digits, and N is divisible by 24. What is the smallest number N can be. My answer was 82656, but I had to do it all out, and that took a while.

I am asking these questions, because when I go to a math meet, I only have about ten minutes to do these problems, and it took me twenty minutes to do them. Is there a way that I could make the solving of those questions go faster.

Thanks for you time,

Joshua

I have a basic question. My science teacher is talking about momentum and inertia because we are going over the laws of motion, and he gives us the formula for inertia for the first law, which is I=mv, and then he gives the equation for momentum, which is p=mv. Why are the equations the same for momentum and inertia? My science teacher just said that inertia is a property of a unmoving object, and momentum is a property of a moving object. I get that, what I don't get is why, quote "Inertia stays in an object even when it is moving, but momentum goes away when an object is not moving." So to clarify, what he said is Inertia will be in an object no matter what, moving or not, and momentum is only in an object that is moving, and it isn't there when it isn't moving. So why do scientists need to have two words? Or is my science teacher wrong and just wasn't in the mood to tell me something.

Oh, and another quick question. How can something not have any mass? I know that a photon, the particle that carries light, or creates it, has no mass, so according to the second law of motion, it cannot acceleration, therefor it travels at a constant speed no matter what. But why does it not have any mass? How is that possible? Or does it have no mass because it's mass is to small we can't detect it.

And my last question of the night, I know that light travels at about 300 million m / s. What decided that it travels at that speed?

Thank you for your time.

Lightmeow, welcome to SFN. I'm not sure what to make of "soldering broom sticks together" to make a dune buggy. Discussions on this forum are generally serious, scientific discussions and debunking of those who have bogus ideas. Broomsticks are usually wooden and cannot be soldered. Moreover, solder is not very rugged, especially in an environment with motor vibrations. Perhaps your native language is not English. Your idea of a dune buggy sounds buggy.

I am sorry, I sometimes get confused with words. The word I was referring to was wielding, not soldering; soldering as you know is used for electronics. I was also referring to metal broomsticks. I appreciate the clever pun you made... My dad is also a computer programmer, was a land surveyor, and likes mechanics. I have many nitro powered RC cars and a four wheeler and am very good with mechanics my self.

I apologize if you thought that I was insulting your intelligence, and hope that you will forgive me. My native language is English I can assure you. I have very poor attention to detail, and am dyslexic, if that explains anything.

I am only fourteen also. I may post some ideas, but I don't have any math behind them, or they may have some holes because of some thing that I haven't learned yet. I do hope that I contribute something to this forum.

Thank you for your time.

If you have any questions, please private message me.

and 'without a calculator' is actually a fairly broad condition. Because would that allow me to use a slide rule? How about a wheel with the trig funtions on it (like http://thumbs1.ebaystatic.com/d/l225/m/mY0p2yLqWcm_BM6fIlsKGXQ.jpg)? Or what more people did before speedy calculation was available... look it up in a table (like http://upload.wikimedia.org/wikipedia/commons/2/2e/Abramowitz%26Stegun.page97.agr.jpg).

 

Also, might want to have a read through this recent thread on a very similar topic:

 

http://www.scienceforums.net/topic/78655-how-do-you-get-the-sine-of-an-angle-without-calculator/

I was referring to the way you were to do it, if there was a formula or the such. Yes you could use a slide rule, and yes you could use a calculator. A am aware that people had a table(my dad was a surveyor and he has a book, called the book of sines). I was simply asking for a way to find it without pressing the sine button on a calculator, or making an approximation via table.(Which I know some calculators have a table programmed in and do estimate)

I also read the thread, sorry for not looking there before I posted it, because that would of answered my question.

Hey, peoples, Always found this bit of logic strange

What do people wear when they go to heaven? The four possible answers

1) White Robes(Amusing Concept)

2)90's clothes(i.e., what they were wearing when they died)

3)All Naked(We know this isn't right, first thing Adam and Eve ate from the tree)

4)Robot suits(Probably not, look what they did to Galileo

And, what happens to the population problem up their? Or every 500 years, does god come with a mighty vacuum cleaner to make it a nicer place)

Just some thoughts...

Yup, I agree with all of you. I was talking in more general terms though, not just Christianity. I feel that us humans would have to get a reality check if we found some life. But then, who knows, maybe all enlightened aliens believe in the bible and the white robed figure, and us Atheists, Muslims, Jews, Metaphysisics, Buddhists, est, est, are just all jaded, stupid losers, who ignored the Christians, who all they were doing was trying to give us a one way trip to heaven.

A time traveler travels exactly 3 seconds to into the past from where he was standing, however when he arrives in the past and waits 3 seconds, he sees himself, but he does not see himself traveling into the future. How is this possible?

He travels into the future 3 seconds later. Wait, didn't read the second part of the problem. Have no clue. I don't believe it is possible. Prove it to me and I still won't believe you.

Looks kind of like a rubber snake.

Some one needs to read the Hitchhikers Guide to the Galaxy:

Proof: "I refuse to prove that I exist," says God, "for proof denies faith, and without faith I am nothing."
"But," say Man, "the Babel fish is a dead giveaway, isn't it? It could not have evolved by chance. It proves you exist, and so therefore, by your own arguments, you don't. QED."
"Oh dear," says God, "I hadn't though of that" and promptly vanishes in a puff of logic.

Self Explanatory( I think)

You know when you are a geek when you get all A+'s in everything EXCEPT GYM!!!!! (I got a A)

Should be funny

Hello, I am Lightmeow, because of my love with cats, and my obsession of making light from blowing stuff up. I have done a lot of sciency things, I am a bad speller, I love math. I invent a lot of things from things most peoples think shouldn't be used to invent stuff with. I made a helicopter out of my dads lawn mower when I was 10(didn't go down well didn't ask first) made a dune buggy by soldering broom sticks together, and putting a chain saw engine on it, made gas powered rollarblades with the same chainsaw engine, I like to make music, and have no clue what I am going to do with my life(OK though, still in 9th grade). Well, edit, I have narrowed it down to being a scientist, musician, or artist. Thats the story of my life, and hello to all of the peoples out there.

Lightmeow

And PS, My favorite book is the Hitchhikers Guide to the Galaxy.

You can use the Taylor series:

 

[math]\sin x = \frac{x^3}{3!}+ \frac{x^5}{5!}+ \frac{x^7}{7!}...[/math]

I would assume that with the Taylor series, you cannot use degrees, because that would screw everything up.

Edit, of course it would, don't even reply to that, I am so stupid

I did a google search of this, and didn't get far...

How would you find the sine of, say pi/2 radians.(Of course, this is 1, just wanted to keep things simple). I'm sure that some caculators have an algorithm to find the sine of a number, and how did people find it out back when they didn't have caculators. Just curious...

And I am just talking about finding the sine, and the others with just one number, the number you are finding the ratio with. Say I wouldn't give you any other information, no other angles or lengths.

Thank's for your time