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1.
Valentina 1 month ago
#40 Early SONAR maybe but not RADAR.
       
0
2.
Frederick 1 month ago
Valentina,

When there is drama in the Café. My Wife goes like this.
       
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3.
Derrick 1 month ago
#21 man I don't know what kind of cars have you had since but practically all cars have that option for the past twenty years.
       
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4.
Beedy 1 month ago
Derrick,

twenty, not thirty-five.
       
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5.
Dacey 1 month ago
#12 Can anyone date this photograph?
Thanks in advance!
       
1
6.
Beedy 1 month ago
Dacey,

it's a handsome photograph, I'll give it that, but for now I'd rather date women, thanks.
       
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7.
Dotty 1 month ago
#9 Tesla fanboys will believe anything. That idea of electricity through the air is dangerous and so busted. sm_80
       
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Gerrie 1 month ago
Quote: Dotty
Chatty Cathy

You're assuming that all frequencies of microwave radiation are dangerous. Tesla lived to a 86 years, despite his exposure to it. Cell phone towers use microwave frequencies.
       
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yahooshoot

An Experimental Tracked Air Cushion Vehicle

In the mid-1960s to the late years of the 1970s, French engineers were looking to create new transportation machines that included the Aérotrain, an experimental Tracked Air Cushion Vehicle. This machine was essentially a hovertrain and a variation of the maglev train design. It was designed to ride on an air cushion above the track and thereby avoid all resistance in order to reach unprecedented top speeds. In 1969, a rocket-equipped prototype achieved a record speed of 262 mph.

The design faced numerous challenges not least of which was the need for elevated guideways wherever the train was set to travel. Sudden changes in wind pressure could also cause problems. The project was eventually scrapped due to a lack of funds.

 

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