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Whether it's useless, insanely dangerous, or just straight up dumb. I challenge you to invent something brilliant that will probably never catch on. If you can, make a picture that helps show what your invention is. If you've actually made it, post a pic of it. Try to describe it in a way people will have some idea what the hell you're talking about.
Some of the road tolls are based off of how many axles a truck has. Make it so the driver can coast in, and flip a switch that raises up some of the axles and hides the wheels under the bed. Then when it starts to move they drop down again so the thing doesn't crumble in the toll booth.
Totally worth spending 10s of k$ to save a buck here and there. I should try and patent it.
For area that people ride to cars but it crosses roads. Put some shitty slid surface across but have 2 raised steel bars so the plow can slide across and hopefully carpet or whatever that wont break beacuse if tires.
lgskiHeres my idea. get a huge room with an olympic sized pool in it. put high powered jets on one end of the pool that could push the water at about 20-25 mph to the other side. in the middle put a boat or something to disturb the water passing by and throw a huge wake. then you could wakeboard in the middle of the pool. Its like swapping the properties of the sport, instead of yourself and the boat moving and the water staying still, the boat is in place and the water is moving
I'll say it again....spreading butter with a knife sucks so much. How about butter that comes in thin strips or circles with a hole in the middle for bagels so you don't have to inefficiently spread the butter with a knife.
Or what about an app that you pay a monthly membership payment for 24/7 access to tutors via some sort of video call. There's been so many times when it's like 11:30, no one is awake, and I need help with work but there's just nowhere to go except the internet which is slow and aggravating to learn something like math from.