Hey, that's a good thought! In fact, there are bicycles that lie low to the ground that do have the pedals in front of the rider. Of course, they get pretty wet when it's raining . . .
On a normal stand-up bicycle, the pedals are under the rider so that she can use her body weight to help push the pedals. Some people will push the pedals while standing up, thus gaining a lot more power just through using their body weight.
Any bike with pedals.
Don't know any penny bikes, but there were penny-farthing bikes. These had really big front wheels, with the pedals attached directly to the wheel axle, and a quite small rear wheel.
Because on a high-end bike the rider is expected to chose what type of pedal he prefers himself, so as often as not the bike is sold w/o pedals.
you sit on it and push the pedals around in a circle like a rode bike but is off road .
Because if you stick the pedals straight to the axle one turn of the pedals only gives you one turn of the wheel, which limits your speed. And it messes with your steering a bit.
There is no information on how many bikes have been invented. The bicycle dates back to the mid 1800s when the pedals were attached to the front wheels.
Usually, yes. But a true tandem will have two sets of pedals as well. There are a few bikes that can have two seats w/o having two pedals, these are usually considered cargo bikes instead.
A free-coaster is a bike, or rather a special type of rear hub, that allows the bike to roll both backwards and forwards w/o the pedals moving. Most bikes can roll forward(=coast) w/o the pedals moving, but with a regular freewheel hub the pedals will begin to spin if you push the bike backwards. A freecoaster OTOH can roll backards w/o the pedals moving as well. Real important if you want to do trick riding that involves going backwards and pretty pointless otherwise.
A pair of crank arms and pedals were attached directly to the axle of the front wheel. When the rider turned the pedals, the front wheel also turned and made the bike move.
A bicycle with seats, pedals and handlebars for two people, one after the other.
Bike pedals with reflective strips can be bought from Amazon's online shop. They offer multiple brands in multiple colors, as well as professional mountain bike pedals.
Well, if you have two bikes with the same wheel sizes, going at the same speed, but the pedals going at different rates - then they have different gear ratios. Mosty probably due to having different tooth counts at chain wheels and sprockets.