Recent content by linux kid

energy wars (don't get excited) My friends (4) and I were discussing energy in the context of transport., ...it quickly spun into a full-blown argument with just me defending electricity. Eventually it was a mess as I started talking about the need for a parameter and everybody getting...

No one's going to help me? :frown:

Well I said fuel cell should fit in the battery compartment but hydrogen tank may be about a liter and can be mounted separately somewhere. Sorry about the confusion.Mybe I can get a high pressure tank for it and stuff it at about 5,000psi but would it be safe

I bought this stand up scooter for $850. It's made by a company called http://goped.com" . It can go upto 20mph and I weigh 142lbs. But the problem is, as with all electric scooters is they get low range. Mine get's about 10 miles and it runs on stock SLA batteries packs. Picture...

Need a custom switching system for a model Let's say you were building a small toy that such as a remote control car. I need parts cut from plastic. Is there a kit to do this at home or would I need to go to a specialist?

On average, how long would it take a 2ghz processor to compute a string math problem that is about 16 million digits long?

Where can I get a list of processing speeds in mbps for the major intel processors?

What are magnetic domains made of? How small are they compared to an atom?

I need a magnet the will pull from at least 9" away or a solenoid that will shoot something outwards, but WITHOUT an electromagnet. It's for a personal project.

What are those tubular magnets called that when you put a metal rod inside it will shoot the rod out. I heard they are used in car locks.

Good info marcusl. Would you believe this? I contacted what seems to be a major supplier...

Thanks for the reply LHarriger but that is way ahead of my current level. That seems like collage stuff and I'm only in 11th grade.

I'm engaged in a project that requires a magnet that can attract from at least a foot away. I mistakenly thought that a larger pull force would also mean a larger field and wasted $15 on a hook magnet with 130lbs pull force but only attracts from abut 2 inches away. So what kind of magnet would...

Oh...I get it now. Thanks.

so there must be a certain amount of electron available. And what if you somehow kept removing those electrons what would happen to the appliance (eg. light bulb)?