Taiwanese hamburger is well known as the Taiwan street food,
it's named Gua Bao in Taiwanese which translates to meat burger or meat sandwitch,
they consist of stewed meat inside a pita-like steamed or baked bun.
These are the 97 m(318 ft)“RV Zhangjian”, named for the founder of SHOU and launched in 2016, and
a smaller SWATH surface support ship RV Shen Gua named for the famous Chinese scientist from the Ming
Dynasty who first described the magnetic compass, and launched in June 2018.
A substantial generalization of the
Pythagorean theorem to three dimensions is de Gua's theorem, named for Jean Paul de Gua de Malves:
If a tetrahedron has a right angle corner(like a corner of a cube), then the square of the area of the face opposite the right angle corner is the sum of the squares of the areas of the other three faces.