Re: collapsed fuel tank
Originally Posted by
waldig
There is no such thing as vacuum. 
you can reduce the pressure to zero in which case the max force is the atmosphere of 14.7 + - pressing on the sides of the tank.
Most nuclear blasts DESTROY buildings with an OVERPRESSURE of 3 PSI............
Over a square foot that is about 400 to 500 pounds of force.
Woody
There is such a thing as a vacuum we are just using it wrongly here. Space is a vacuum, it is the absence of matter that is called a vacuum.
I have used a vacuum pump that used an oil spray to collect most but not all air that was still floating around in a chamber after two previous pumps had evacuated the majority of the air. This was back in the late 70's making laser discs for DiscoVision (MCA) and the equipment was used prior to covering the plastic disc with a microscopic layer of aluminum which had been vaporized. This layer made the info molded onto the disc readable with a laser.
I am not sure what the closest we get to a true vacuum on earth is, maybe Maxichon will offer up an answer or we could use search on Google.
Meanwhile I'll get the vacuum cleaner (hoover in the UK) out and clean my workshop.
Last edited by onehundred80; Aug 9, 2015 at 06:46 PM.