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If memory Serves Mythbusters did that and tried it with a very light plane and a really long tarp, the pilot was amazed. If I recall the wheels are not powered and only the engine which forces wind over and under the wing matters. Non-trival question! Full marks have a look on Amazon+ or You Tube for the episode. 
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Unlawful means against the law and illegal is a sick bird.
If you can't laugh at yourself - ask me and I will do it for you.
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but I don't know any French, is there any quick way to pick some basic math terms to understand this book?
diligent hands rule....
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"All the best mathematics books are in German." -- A professor my father spoke about
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Many great mathematicians were French, so maybe it's a case of teaching when you can't do. 
And in a fair turnabout, the French should then write the philosophy texts. 
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it seems like the only way at this time.
diligent hands rule....
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From my experience with Google Translate, you aren’t going to get anywhere near a good understanding of the material. If the subject is elementary math (trig, calculus, linear algebra), Google Translate might fair better but then, you have many good books in English.
Maybe you should have asked the question before buying the books.
Mircea
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this is the book I got from Amazon.
diligent hands rule....
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During my younger days in India, (I still live in India), we used to get Soviet Mathematics and Physics books published by Mir Publishers. Deep mathematical content, and very educative.
There were some among us who liked American/British books as compared to Soviet books, but I found Soviet books also quite nice. Learnt a lot from them. Some of them are now available online for download at archive.com - Mir Titles : Free Texts : Free Download, Borrow and Streaming : Internet Archive[^]
Examples are Piskunov - Differential and Integral Calculus, and Demidovich - Problems in Mathematical Analysis, beautiful book with a great set of problems.
modified 9-Apr-22 23:27pm.
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thanks for this great link on Mir books!
diligent hands rule....
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I am not that old, but I am just old enough to have been gifted a few books from Soviet publishers.
Oddly enough, a couple were English books (as in, they taught English) but I probably lost them now and a few were from the Folk Tales from the Soviet Union series, which I still have.
Thank you for the link, I will save it and check it out 
Cheers,
Vikram.
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It is better you view the site on a laptop, rather than mobile. Because on a laptop browser, it refreshes itself with newer books at the bottom of the page, and then it refreshes itself further and further. There is a large set of books here.
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Thanks for the tip, yes, using a laptop instead of a phone here.
Cheers,
Vikram.
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not sure if these books are downloadable from that link?
diligent hands rule....
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Yes. They are indeed downloadable. Just click on the book you want to download, and it will redirect to the archive site where this book is hosted. You can download the PDF from there. I have downloaded dozens of books from there.
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thank you very much! I like all these mathematical analysis books and will download them....
diligent hands rule....
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Southmountain wrote: any quick way to pick some basic math terms to understand this book?
Buy a French - English dictionary.
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Get a French mistress/girlfriend with a BSc in maths?  It's how my grandfather claimed he learnt French.
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My guess is that the quickest way is to buy two math books from Amazon in English.
Why even buy French if you don't know any French? 
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there are some formulas in these two books that I can not find in other books...
this is the book I got from Amazon.
diligent hands rule....
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Aren't most formulas rather culture neutral?
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these formulas are unique from that author...
diligent hands rule....
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This Wordle craze ...
I don't see how it differs significantly from the 'hangman' plays we had as six or seven year olds. Oh well ... we found it funny at that time. But except from the modern option of publishing our results all over the world, is there anything else distinguishing from good old hangman?
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It's more like Mastermind[^], except that the guesses have to be words instead of any combination of letters.
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