latest Hoverboard Attempt: The Arca Board

a reply to: lostbook

Cool,

i wonder how loud it is with all those fans spinning.

one day, we will have our Mattel hover board!

originally posted by: roadgravel
Maybe to come better fans and feed back to a computer to control the fans to make it more stable.

Seems possible with tech today.

gyroscopic onboard computer.

however, im thinking.. running time is a concern. can this thing run more than 5 minutes on one charge?

originally posted by: Phage

Everything above absolute zero radiates thermal energy.

Second law of thermodynamics would disagree

It is impossible for a process to have as its sole result the transfer of heat from a cooler body to a hotter one.

a reply to: Vector99

Second law of thermodynamics would disagree.

It would seem that you don't understand it any more than you understand the concept of superconductivity. There is a difference between heat and radiation. Remember what I said?

Everything above absolute zero radiates thermal energy.

The primary source of infrared radiation is heat or thermal radiation. This is the radiation produced by the motion of atoms and molecules in an object. The higher the temperature, the more the atoms and molecules move and the more infrared radiation they produce. Any object which has a temperature i.e. anything above absolute zero (-459.67 degrees Fahrenheit or -273.15 degrees Celsius or 0 degrees Kelvin), radiates in the infrared.

coolcosmos.ipac.caltech.edu...

a reply to: Phage

Well for one, absolute zero is only a theory.

Absolute zero cannot be achieved, although it is possible to reach temperatures close to it through the use of cryocoolers, dilution refrigerators, and nuclear adiabatic demagnetization. The use of laser cooling has produced temperatures less than a billionth of a kelvin.

In any closed system, the entropy of the system will either remain constant or increase.

I'm curious how your pencil avoids this

a reply to: Vector99

Well for one, absolute zero is only a theory.

No. It's a real thing. It's just unobtainable.

I'm curious how your pencil avoids this

It isn't in a closed system.

originally posted by: Phage
a reply to: Vector99

Well for one, absolute zero is only a theory.

No. It's a real thing. It's just unobtainable.

That is the definition of a theory. Something we think exists but cannot prove it.

a reply to: Vector99

That is the definition of a theory. Something we think exists but cannot prove it.

False. You have just demonstrated that, along with the concept of superconductivity and the second law of thermodynamics as well as the difference between heat and radiation, you do not understand science. (not surprisingly)

dictionary.reference.com...

originally posted by: Phage
a reply to: Vector99

That is the definition of a theory. Something we think exists but cannot prove it.

False. You have just demonstrated that, along with the concept of superconductivity and the second law of thermodynamics as well as the difference between heat and radiation, you do not understand science. (not surprisingly)

dictionary.reference.com...

repeatedly confirmed through experiment or observation:

One observation of true absolute zero is all it would take. Have it?

a reply to: Vector99
This is what you said:

That is the definition of a theory. Something we think exists but cannot prove it.

And in spite of being shown wrong, and trying to understand why you were wrong, you persist. Read the definition again, and try to understand it.

a reply to: Phage

I didn't say scientific theory, I said theory.

A good example is light speed. We can't achieve it but we HAVE observed it. So it's a scientific theory. Absolute zero has never been observed or produced repeatedly, so it's just a theory.

a reply to: Vector99

I didn't say scientific theory, I said theory.

Where, outside of science, is absolute zero of any concern?

a reply to: Phage

Where, ANYWHERE, does absolute zero exist?

That kind of is the stickler of a scientific theory, the whole observational part of it.

I hate to be the one to break it to you guys, but both vids of those wanna be hooverboards really really really suck.

Pitiful. Back to the drawing board please.

a reply to: angeldoll

We know that

Merry Christmas

Wish Santa woild bring me the real hoverboard.

a reply to: angeldoll
Isn't that what a hooverboard should do?

Ain't the first

www.hiller.org...

originally posted by: Phage
a reply to: Vector99

That is the definition of a theory. Something we think exists but cannot prove it.

False. You have just demonstrated that, along with the concept of superconductivity

Energy is required for something to BECOME superconductive. How do you of all people not know this?

you do not understand science. (not surprisingly)

Really Phage?

While I'm not a graduate in physics, I sure as heck know what it takes for something to be a "scientific theory" and absolute zero doesn't qualify.

a reply to: DenyObfuscation

No, Dear. A hooverboard is supposed to do this:

a reply to: angeldoll

The Lexus one could do it if we could get it cold enough. Unfortunately we can't, and even if we did wouldn't really be safe for people.