Put the two cones in the lower part of the inclined plane. See what happens.
How it works
The two cones move up along an inclined plane with no evident propulsion! This happens because movement in that particular direction shifts down the entire system’s centre of gravity. The special construction of the inclined plane is responsible for that. Its two rails drift apart as the height increases. Although the point of contact of the cones with the plane rises, the centre of gravity shifts down.
Every object in the universe reaches its lowest possible energy state: a dropped apple falls to the ground, rivers flow from the mountains towards the sea and the two cone’s centre of gravity shifts down as they go up an inclined plane. It turns out that even our laziness stems from physical laws.