Artery Model speed-bumps This centrifuge consists of a

This centrifuge consists of a substantial cast-iron body enclosing a steel pinion and worm drive fitted with a ball-thrust race

It shows that water is constantly reused and recycled and also illustrates how clouds are formed

around schools

One tank full will burn 1-2 hours

Durable and water resistant units

Artery Model speed-bumps This centrifuge consists of aOversized "Y" section of artery, with cut away, showing gradual build up of cholesterol deposits. Model size: 6 1 4" x 2" x 4". Card size: 6 1 2" x 5 1 4" Oversized "Y" section of artery, with cut away, showing gradual build up of cholesterol deposits. Model size: 6 1 4" x 2" x 4". Card size: 6 1 2" x 5 1 4"