math behind this cute little boat
https://www.youtube.com/watch?v=puOZHmgnj9s

Question

zzr0ck3r · Answer

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ganeshie8 · Answer

It is a simple sailboat. It seems to work entirely based on vector addition of wind angle and the sail angle. Just wanted to share this as I study the math/physics behind this little marvel :)

baru · Answer

i remember it  from a problem in 18.02...  its constructed such that you can go in any direction just using the sails, including against the direction of the wind!!

baru · Answer

http://ocw.mit.edu/courses/mathematics/18-02sc-multivariable-calculus-fall-2010/1.-vectors-and-matrices/part-a-vectors-determinants-and-planes/problem-set-1/MIT18_02SC_pset1.pdf part 2, problem 3

baru · Answer

i think the central idea that allows this is the 'keel' which prevents the ship from moving in any direction except along the length axis

ganeshie8 · Answer

Yeah, that keel in the water kills all the force of the wind except the component along its direction. Keel is really the key part of a sail boat.  I'm gonna try that problem...