Helicopter Hieroglyphs Explained

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I can't solve all of the (cue reverb) MYSTERIES OF THE UNIVERSE, but I have solved one.  There are a set of hieroglyphs in Seti I's temple in Abydos, Egypt that certain people have decided show the ancient Egyptians had, or knew about, helicopters, tanks, submarines and jets.  Yes, I can see how it looks like that, but the truth is, of course, mundane.  It took me a day to figure out what was going on.  (Yay Google images, Wikipedia and an amateur interest in hieroglyphs!) 

3 guesses what it is and what you do with it...

King Edward VII of England, or Bertie as most people know him, had a slew of mistresses and a favorite brothel in Paris where this pretty piece of furniture was part of his favorite room, and is now on display. The Daily Mail (where I got this photo from) doesn’t seem to be able to picture how it could possibly be used. Personally I think it is quite obvious, but that might just say more about me than the Daily Mail. "The way in which Bertie used the chair has been lost in the mists of time." Not really.

If I didn't know better, I would think this would look cool in my living room. That would be embarrassing.

-If you need an explanation, you don't need to know-