Manticore

Quote from Giaever. "I am not really terribly interested in global warming. Like most physicists I don't think much about it. But in 2008 I was in a panel here about global warming and I had to learn something about it. And I spent a day or so - half a day maybe on Google, and I was horrified by what I learned." So half a day (maybe) searching Google appears to be the sum total of his knowledge of climate change.

It is useless. Which ever side had the most weight would rotate downwards until it reached it's limit (vertically down if the mechanism would allow it). equalising the weights would result in no movement whatsoever. (whatever position the beam was in).

I'll try that if it happens again.

Neutral scales would be useless - they would just keep tipping towards the heavier side until they were vertical. With no weight, they would remain in whatever position they had been left in.

Mysterious echoing voice: "I am GOD." Wise Man: "Fuck off."

Difficult to disprove something that appears to be just a mass of random gibberish.

And that's exactly what wasn't happening. I must have had a blockage somewhere and the gases were building up in, or close to, my stomach causing swelling and pain. (much flatulence overnight and it's a bit better now.)

I know it's kind of a stupid question, but I really can't see why all of the gas produced by the digestive system does not work it's way upward. (This is a result of currently suffering from severe stomach pains.)

I can't find any reference to tube exit speed on their site. (OK. I've got bad stomach pain at the moment & could easily have missed it.) My own intention was to exit at Mach 3 and fire up a scramjet. The thought of any kind of instability in the Maglev system at those speeds combined with the necessarily small clearance between the vehicle and tube would also worry me. (A reliable, working scramjet is another problem altogether.)

Can you avoid Murphy's law? Sooner or later there will be a failure of the mechanical valve. The explosion is when your launch vehicle hits it. You almost certainly can't abort the mission halfway up the tube.

Pumping the air out gets complicated. Remember, you have 19,000 feet's worth of pressure differential. If you just pump air out at the bottom then you will get more air rushing in at the top to replace it - giving you yet more resistance. If you close off the top, you are going to be faced with the problem of opening a massive door in a ridiculously short time at exactly the right instant (assuming you don't actually want a huge explosion at that point). I suspect it goes back much farther than that (you might even make a case that the giant cannon in Jules Verne's "From the Earth to the Moon" is basically the same principle - even though he got the figures hopelessly wrong).

I would treat the loose pans simply as forces that act vertically downwards from their suspension points.

I came up with a similar idea several years ago. The tunnel would have been up the west slope of Kilimanjaro (19,000 ft). The main problem I thought of was the air in the tunnel compressing ahead of the launch vehicle - once you get close to supersonic that's going to be like trying to push through a brick wall.

Which Devil? Like Gods, there have to be either zero or an infinite number of them.

I wanted to fly for the RAF when I was young - I got the "Terribly sorry old boy. But to be a pilot in the RAF, you have to be an officer. To be an officer you have to be a gentleman. You don't make it so f*ck off." (I ended up many years later with French and Togolese pilots licences.)

Ravens perform better than 4 year old children. https://arstechnica.co.uk/science/2017/07/ravens-smart-future-planning/

You need to read up on "Reynolds Number". Airfoils suitable for full sized aircraft are not necessarily suitable for small models and vice versa. I suggest you try Martin Hepperle's "JavaFoil" http://www.mh-aerotools.de/airfoils/javafoil.htm and download the UUIC airfoil database http://m-selig.ae.illinois.edu/ads/coord_database.html which contains coordinates for nearly 1,600 airfoils.

A good basic rule is that, like Fox News, anything that appears in the Daily Mail should not be believed unless it is confirmed by reputable sources.

Maybe the OP is some kind of Victorian time traveller?

Eczema is a general term for different types of rashes.There is not, and cannot be, one cure.

I think the central pivot is normally above the beam - this means that when it is tilted, the upwards end of the beam must move outward slightly (and the lower end inwards), giving a greater torque from the upper arm around the pivot.

Try getting a pilot's licence. You soon learn that if you fly into a cloud relying on your own senses (ie. without instruments) you will almost certainly be dead within a few minutes.

Someone once said that the word "science" in the name of a subject (domestic science, computer science etc.) is a good indication that the subject is in no way a science. I would like to suggest that, in the same way, anyone who uses the word "genius" in their username ..................

It ha It has already been explained to you by others exactly why you are wrong.

Governments do not make a profit - Many Republicans in power do, in the form of the immense amount of funding they get from the pollution industries.