Posts Tagged ‘mumbo_jumbo’

eGrain for your balls

Saturday, September 15th, 2007

eGrain for your balls

Here’s a chip that can be mounted inside your golf ball for analyzing the speed, spin, and direction of your golf balls.

Nice… but the world is really turning into this mumbo jumbo tech bs…. We need to really stick with down-to-earth fundamentals…well for 95% of us on earth…

Regardless, this is great technological breakthrough for anyone who can break par.

A “smart” golf ball demonstrated at a consumer electronics fair in Berlin can help improve a golfer’s game by using a computer chip to reveal how fast it flies off the tee.

Developed by Germany’s Fraunhofer Institute for Reliability and Micro-integration, the e-Grain chip inside the ball can survive 200 sharp whacks from a pro golfer.

In the first five metres of its flight, it wirelessly sends information about its velocity to a display on the golfer’s bag.

via theage

Physics Mumbo Jumbo

Thursday, September 13th, 2007

Physics Mumbo Jumbo

Here’s some good golf mumbo jumbo for those of you who are so into golf. Not that I am not, but this really takes the “grip and rip it” out of your game.
My advice? GO hit the ball first… All this you can think about after you start shooting near par…  This article must have been written by a Physics Professor who couldn’t break 90…

The interaction between the club head and the ball will determine how far the ball will go and in which direction. There is a relationship between the speed of the club head and the initial velocity of the ball. This relationship depends on the coefficient of restitution of the ball, which varies between different types of balls. When the ball is struck by the club, it is deformed and flattened by the force of impact (balls with harder cores deform less than softer balls). In general, a harder ball will travel further than a softer ball because it deforms less and will efficiently transfer more energy from club to ball. During the impact between the ball and club head, kinetic energy is transferred and stored as the ball tries to regain its original shape. This coefficient of restitution is quite similar to the restoring force we discussed in class. To obtain maximum distance in the drive, a ball must be selected that maximizes restitution for the club speed. If the chosen ball is too soft for the club speed, too much energy will be spent deforming the ball and not enough energy will be stored in the ball. Similarly, if the ball is too hard for the club speed, then the ball will not deform enough, and again, will not transfer adequate energy. This is why it is important to choose a ball that matches the club speed. Here is a graph relating initial velocity of the ball with club speed:

via physicsofgolf