BRAIN TEASERS

enter your answer and press button OK

Calculate the number 6030

NUMBERMANIA: Calculate the number 6030 using numbers [3, 3, 8, 4, 76, 787] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Good news...bad news...

"I have good news and bad news," a defense attorney told his client.

"First the bad news: The blood test came back, and your DNA is an exact match with the sample found on the victim's dress."

"Oh, no - I'm ruined!" cried the client. "What's the good news?"

"Your cholesterol is down to 140!"

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

First electron tube

In 1904, the first electron tube, a diode thermionic valve, was invented by John Ambrose Fleming. The valve consists of a carbon or tungsten filament lamp, to which is added a metal plate (insulated from the filament), and a connecting wire brought through the glass wall of the bulb to a third terminal outside. When battery current is applied to the filament making it incandescent, the space between the filament and the insulated plate will be found to conduct elecrons in only one direction. That means if the valve is connected in a circuit in with an oscillating current, its one-way conductivity will convert the oscillating current into a unidirectional current capable of actuating a telephone receiver. He notified Marconi in a 30 Nov 1904 letter.

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.