Moment of Inertia

Check your text book. Or, ask your insturctor.

No text book or instructor? Google it.

Well if this guest comes up with a good definition of "inertia" I'll gladly explain what the the idea of the moment of inertia.

I think you posted this in the wrong place. It should have been posted in Biomed. C sections are done by doctors, not mechanical engineers.

Somebody "un-GA'd" you. That wasn't nice.

There, fixed it.

Hi all,

Can anyone explain to me what is meant by the term area ? i dont really understand. Where is it applicable ? How to find the area of a rectangle ?

What is meant by the term pi ? How to use it ? Does it have something to do with a circle ?

Thanks ALL......

Hah, hah, hah. Good to see a sense of humour.

"What is meant by the term pi ? How to use it ? Does it have something to do with a circle?"

From Wikipedia: "A pie is a baked dish which is usually made of a pastry dough casing that covers or completely contains a filling of various sweet or savoury ingredients"

'Pi' is the plural form of 'Pie'. There are some that will use the phrase 'Pi Are Square'. You can plainly see by this illustration (borrowed from CR4 member Del the Cat) that proper Pi are NOT square, Pi Are Round:

So, yes, Pi has "...something to do with a circle ?"

Doorman,

I hope your not outside today.

Thanks for "clearing my doubts" about pies.

Any fool should know that cornbread are square.

It is a good day to be inside. About -15⁰F this morning; has been similar for two days, and scheduled for more of the same for another three days or so. Brrr.

Mmmmmm. Warm cornbread with butter and honey... Rhubarb pie with vanilla ice cream... Chocolate pudding pie with graham cracker crust and a little dollop of whipped cream on top... The simple pleasures are the best.

A CR4 member (the OP?) has a comment that has been deleted instead of being moderated. I have a few observations about the comment:

You said: "arrogant boring bastards who comment on virtual internet forums because in the real world they are useless/insignificant..."

I take umbrage at your comment, sir! My parents were happily married!

You said: "PI also means multiply the diameter of a circle by 3.14159" Do you really want to stick with that? And if that is what you think, why are you asking us?

It's MISS not SIR

So?

Oh, bugger that silly precision. I just multiply the diameter by 3. I can do that in my head and the little bit of pi that's left over, I give to the dog. She loves pumpkin.

Hi Guest

moment of inertia is that magic moment when a flywheel resists any change in it's rotational speed. The bigger/faster/heavier the wheel the longer the magic lasts.

IT'S FREE ENERGY!

It's the free lunch (free energy) that the educated classes will insist does not exist. Don't listen, they know not what they think they know. These missguide souls are INDOCTRINATED not educated.

Good old James Watt knew about this magic moment.

Between the backward and the forward strokes of the early steam engines torque was dependant the momentum of the engine itself. Because of this the early steam engines often hung themselves when load was added.

The uneducated Mr Watt added the flywheel momentum to fill in this gap in torque and to this day the most advenced of combustion engines uses this magic.

The cosmos itself is in it's moment of inertia MOMENTUM ENERGY or KINETIC ENERGY.

The world's oldest yet most efficient and advanced machine is the flywheel.

Turn a bycicle upside down and spin the wheel. (IMPORTANT) Apply a force to the rim and measure the force, now try stopping the wheel with the same amount of force and observe MOMENT OF INERTIA. It's magic!

Oh my

There is no free energy.

The flywheel is certainly one of the most common ways to store kinetic energy but it is not a source itself. You also mixed derivatives with gay abandon like many free energy flights of fantasy.

That's total bull$h!t. Please go take a physics class.

Is that the offspring of the mating of a bulldog with a shih tzu?

Guest,

This is an engineering forum, designed mostly for discussion of engineering concepts and application. We often get questions that appear to be homework and most of us feel it does not establish a good work ethic for us to just give you the answer.

We will gladly help you work toward the answer, but not give it outright. Show us that you have put forth some effort on your part and we will help you the rest of the way.

This is a great forum for Engineering students to participate in because there are many discussions that will teach you something. Become a member and show us what you can find out about Moment of Inertia and we will do what we can.

Drew

Mr. Devine,

There is a fundamental flaw that you and many free energy proponents regularly boast. You simultaneously claim that modern science cannot explain what you have found and you claim that you have little to no scientific training. That you believe a scientific training will stunt your creativity. Well there's a fundamental flaw in your logic here. To say that you've found something that science cannot explain you must have an understanding of science. You also tend to have a single engineering or scientific colleague that could not explain what your machine does. One individual is not the whole scientific community. If you really wish to impress us, get someone from the James Randi foundation to say your machine works.

Even though I dread asking you any question about your wonder machine, I do have one question for you. If your machine does some how extract power from the movement of the solar system, you clearly cannot disconnect it from the solar system. So how do you stop this machine?

"So how do you stop this machine?"

Perpetual motion has many hidden shortcomings.

What is the average output of your Cosmic Turbine based on a 24hr load cycle?

Could you supply verified affidavits as to it's ability to meet maximum demand if it were called upon?

During periods of low demand how do you propose to utilise the excess power generated?