What is hidden in 3D image?
[4073] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
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What is hidden in 3D image?

Stereogram - 3D Image
#brainteasers #stereogram #3Dimage
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Random Thoughts

If you mixed vodka with orange juice and milk of magnesia, would you get a Phillip's Screwdriver?

Why do we say something is out of whack? What is a whack?

If love is blind, why is lingerie so popular?

When someone asks you, 'A penny for your thoughts,' and you put your two cents in, what happens to the other penny?

Why is the man who invests all your money called a broker?

When cheese gets it's picture taken, what does it say?

Why are a wise man and a wise guy opposites?

If lawyers are disbarred and clergymen defrocked, doesn't it follow that electricians can be delighted, musicians denoted, cowboys deranged, models deposed, tree surgeons debarked and dry cleaners depressed?

If you take an Oriental person and spin them around several times,do they become disoriented?

If people from Poland are called 'Poles,'why aren't people from Holland called 'Holes?'

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Ultrasonic alarm

In 1953, the first U.S. patent for a burglar alarm operated by ultrasonic sound was issued to Samuel Bagno of New York City (No. 2,655,645) on a system for movement detection in a confined space by intruders or fire. It was manufactured as the Alertronic and first sold in Jun 1950. A sound source produced waves of 19,000 hertz, a frequency too high for normal human hearing. An intruder could be detected by the alarm by a difference in frequency of the reflected waves from the moving body (the Doppler effect). The device would then sound an alarm.
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