Ok Sheena, we were talking abt this the other time when we went to Giant supermart.. so here it is...
How do the trolleys (no matter how heavy it they are) stay on the inclined moving walkways without slipping downwards?
I chanced upon wikipedia and managed to find out!
The carts have either a brake that is automatically applied when the cart handle is released, strong magnets in the wheels to stay adhered to the floor, or specially designed wheels that secure the cart within the grooves of the ramp, so that wheeled items travel alongside the riders and do not slip away.extracted from wikipedia.
So we're not saying that there's no possibility that the walkways and wheels are made of metals that have such great magnetic force that enable them to attract each other and ensure that the trolleys of whatever weight are safely secured as we are moving upwards or downwards.
BUT, we have tested the wheels and walkways with something magnetic and proven that they are not of magnetic material, therefore we can conclude that the trolleys have specially designed wheels that secure them within the grooves of the ramp OR that there is a brake automatically applied when the trolleys are released! ;)
AND i just discovered that if the moving walkways move at a speed of 12km/h, many people would fall off! Please imagine people falling off the walkways... hahahahaha
