"pamela" wrote in message
...
On 06:40 13 Apr 2016, harry wrote:

On Tuesday, 12 April 2016 23:06:44 UTC+1, michael adams wrote:
"Rod Speed" wrote in message
...


However some inventions seem to wait for ever.

Can't think of any important one that has.

Here's one


https://fetch.co.uk/chuckit-sport-18-ball-launcher-
medium-46cm-207758011?gclid=CJ_FgqKNiswCFbEy0wodcX0C2w

Ball launchers for when taking the dog to the park. One piece
plastic mouding with added bits must cost about 50p to make.

Probably can't be patented but its surprising nobody
thought of them earlier.


michael adams

...


Drivel.
That was invented over 2000 years ago.
https://en.wikipedia.org/wiki/Spear-thrower.


Isn't the ball launcher different to a spear-thrower in that it
significantly lengthens the radius of the action to throw the ball
giving a much faster launch speed?

That ball launcher is more like the type of sling David used
against Goliath.

Yep.