How Bicycles Work
Now wait for a second, one of the major science rabbit holes involves how bicycles work?!? We do know that we can ride them, and clearly, our weight and the movement of the tires play a role. However, we’ve had bikes for over 150 years and yet scientists are not actually sure about how we stay upright on them. Even the idea of the wheels playing a role might not be 100% accurate. Before the 1970s, this was one of the main theories.

During the 1970s period, we found out that gyroscopic motion did not play a role in how bicycles actually worked for us. Once the gyroscopic concept was thrown out, scientists struggled to find out a reason why humans can stay upright on a bicycle. More theories began to emerge, with the Castor Effect being the frontrunner. This involves the angle of the front wheel when it makes contact with the ground, relative to the frame.