Best Answer: Today, the national average for the diamonds chosen for engagement rings with regard to carat weight is 0.38 carats. In general, the carat weight averages of engagement ring diamonds are increasing.
Now have you ever wondered what is up with tennis players and the noises they make when hitting the ball back and forth. Well, they have every right to make these noises. Venus Williams served the world's fastest tennis ball among women which was clocked at 56.95 m/s (127.4 mph). That's twice the speed limit on a regular highway in New York City. Tilden holds the title of World's fastest tennis ball served among men with a speed of 73.14 m/s (163.6 mph).
The highest electronically measured speed for a ball bowled by any bowler is 161.3 km/h (100.23 mph) by Shoaib Akhtar (Pakistan) against England on 22 February 2003 in a World Cup match at Newlands, Cape Town, South Africa. Another technique of fast bowling is the sling action.