acceleration

Would you trust your life to physics?

So, I guess I this should be a post about the Higgs Boson as the announcement yesterday was quite a big deal. However, it’s not for three reasons:

1. There is a lot of stuff on it already out there.

2. Despite spending time yesterday reading several articles and watching videos involving ping pong balls and sugar, I still don’t know enough about it to make a meaningful contribution.

3. I found this video which is amazing: real-life hot wheels!

More

Super stunt science

This video from last week shows stuntman Gary Connery falling 2400 feet without a parachute and surviving to tell the tale. This would be a great story in a lesson on forces with any age student.

The students could:

  • Name the forces acting on him as he fell.
  • Calculate his average speed by using time from the video clip and using the speed equation (2400 feet = 731.52 m). As he fell for around 19 seconds this makes it an incredible 38.5 m/s (86 mph)!
  • Draw force diagrams for when he just left the aeroplane (unbalanced forces), when he was at terminal velocity (balanced forces) and when he had just hit the boxes (unbalanced).
  • Explain why his suit helped him survive the fall. More able students can link forces, particles and energy in this explanation.
  • Calculate his potential energy when he was in the plane (mgh). Gary is approximately 84 kg.
  • Sketch a velocity/time graph for the fall.

If you have any other ideas – please leave a comment and share!

 

Super speedy car

The gadget show team

Last weekend I visited The Gadget Show Live at the NEC in Birmingham in the hope to see some applications of science in the future tech on show there.

One thing that caught my eye was the Bloodhound SSC.  This car is Britain’s latest attempt on the World Land Speed Record and it hopes to reach an amazing 1000 mph (237 mph faster than the current record, also set by the same group).  SSC is an acronym for Super Sonic Car as it will travel at 447m/s, faster than the speed of sound. More