does a horse pull a cart with the harness, or does a horse push the cart with harness from the front
Cart
The phrase 'don't put the cart before the horse' is an example of an idiomatic expression.
In the dictionary
A horse obviously cannot grasp a towing conveyance, so in order to move an object it needs the assistance of a horse harness. In the case of the harness, the horse pushes forward to move the cart, however basic physics define this as pulling the cart. Yes, the horse is pushing forward, but it is pushing the harness, NOT the cart. The cart is being PULLED by the harness with the horse providing the energy to move the cart. Some mistakenly believe this means the horse pushes the cart, but they are mistaken. With the weight of the cart (mass) being moved forward (force) from behind the energy source (horse), by definition the cart is being PULLED, regardless of the horse's type of energy exerted on the connecting harness.
The phrase, "Don't put the cart before the horse," is an idiom. It means do not do things in the wrong sequence or order.
The horse has been put before the cart - in other words, something is, or is being done, the wrong way round.
Aristotle's Horse Cart theory was that when a horse pulls on a cart, the cart moves. When a horse stops moving, the cart will stop as well.
A cart-horse simply is a horse/pony that has been trained to pull a cart.
idiom
Even though the cart is pulling on the horse with the same force that the horse is pulling on the cart, the weight of the horse, the way it runs, versus the way wheels move, all add up to make the sum of forces on the system move in the direction of the horse.
do you mean blinkers? if so its so the horse won't spook at the cart behind them or anything to the side. they can there fore only see directly in front of them. if they didn't have the blinkers and did spook the cart could tip.