短裤 创造
Both front wheels turn in and the car turns on the spot.
0
0
0
15
Very cool inventions from the past!
0
0
0
12
Hat radio and kids bike from the past
0
0
0
14
So how did we lose this technology to then reinvent it 100 years later?
1
0
0
13
Moving sidewalks that could care many people at once without a problem.
0
0
0
10
Ambass bass ing?
0
0
0
4
