USC students set world record with high-flying rocket launch (video)
The student-run USC Rocket Propulsion Lab's Aftershock II vehicle soared to an altitude of 470,400 feet last month, higher ...
BBC4 年
Pyramids and cones - Higher tier only
A pyramid is a 3D shape with a flat base, and triangular edges that meet at a ... Calculate the surface area of the glass. A cone is the general name of a shape that has a flat base of any shape ...
Simon Fraser University3 年
1J20.70 Rolling Uphill (Double Cone on Incline)
A symmetrical double cone piece is positioned on the narrow end of a triangular track with a slight incline at the other end. The shape of the track and the pitch of the cones are such that the centre ...