interactives:
My onager model
interactives:
My espringal model
interactives:
Tensioning the espringal
interactives:
Loading the espringal
interactives:
Shooting the espringal
interactives:
Six rolled-up risk-assessments
interactives:
Barbecue-skewer-blowpipe
interactives:
The sling has been slung
interactives:
Slinging a golf ball
interactives:
The staff-sling
interactives:
Thowing an arrow with a piece of string
interactives:
The atlatl
interactives:
The Roman plumbata dart
interactives:
Overarm throw? - 1
interactives:
Overarm throw? - 2
interactives:
Richard Ellam demonstrates his water rockets
interactives:
Richard Ellam prepares for take-off
interactives:
A water rocket lifts off
interactives:
The above is a balloon-rocket, almost out of sight...
interactives:
Leaf-blower atomiser
interactives:
The Coke and Mentos fountain experiment
interactives:
Success!
interactives:
Even higher!
interactives:
Ben Craven's supergun
interactives:
Ben Craven defies gravity