Brain Teasers User Profile

Milan Borkovic

See full ranking list
short ranking list
85. richard dindin 128
86. Seah Owen 117
87. Milan Borkovic 112
88. Lubo Madaras 111
89. Samrat Mitra 107
last 3 solved tasks
What is the missing number?
What is the missing number?
What is the missing number?

Synthetic diamonds

In 1955, the General Electric Company announced their successful synthesis of 1/16" diamonds using the first process that was reproducible. The GE Super Pressure Project research team had worked since 1951 to create a special pressure vessel to subject carbon compounds to pressures of up to 1,500,000 lb/ at temperatures of up to 5,000 deg F. They created the first diamonds on 16 Dec 1954, beginning GE's man-made industrial diamond business. Manufactured diamonds are used as abrasives in masonry saws, mining drill bits, polishing machinery, and cutting tools. (On 16 Feb 1953, a Swedish scientist was the the first to create diamonds in an experiment that was not repeated, and held secret prior to GE's announcement.)«[Image: Watson-Stillman press used to make GE's first diamonds]

Jack has died. His lawyer is s...

Jack has died. His lawyer is standing before the family and reads Jack's last will and testament:
"To my dear wife Esther, I leave the house, 50 acres of land, and one million dollars. To my son Barry, I leave my big Lexus and the Jaguar. To my daughter Suzy, I leave my yacht and $250,000. And to my brother-in-law Jeff, who always insisted that health is better than wealth, I leave my sun lamp."
Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.