A good invention is something that is very useful and needed by the consumer. Advancements in older inventions are always useful as well.
Anyone who has a good idea for an invention isn't going to give it away on the internet! You're going to have to look around and see what needs to be improved and invent something to improve it.
If it is a good invention and actually works, then it will only sell if you see someone famous, or have enough money to advertise it. If it is a bad invention, don't count on selling it.
ii think that if he didnt invent it we wouldnt know what time it was if we didnt haVE A WATCH AND THAT OUR HOUSES WOULDNT LOOK AS GOOD .
a good invention would be a airsoft tank or somthing like a sling shot or a gun that shoots something
I think it was a good idea. Should he need a particular reason?
yes, i am a very good invention, because i answer all your questions
Cookie Dough Maker Is An Good Invention To Maker =D
if nobody uses his inventions or they aren't much good, nothing if he invents something really good, but fails to patent it,then still nothing, but if he/she does invent something really good or useful,and he protects his invention by patenting, then he/she could make millions of $$$$
This is the best invention because it is big.
it was good
He invent alot of good stuff.
yes