is this new?

[JUDWAK]

http://www.liveleak.com/view?i=5a9_1231064535
or has this been done before
i never seen nothing like it
but some of you lot may have

[Growler]

Wasn't something like that used to cross the Bearing straits at one time ?

[da SLUG man]

yeah... some kind of polar exploring thing... those corkscrews act as floatation too, so it's amphibious

[Ava_Banana]

Wasn't something like that used to cross the Bearing straits at one time ?

Yup....they tried with Snowbird 5...see article here:

http://news.bbc.co.uk/1/hi/uk/1253733.stm

....and succeeded with Snowbird 6.

..both "Archimedes Screw" driven craft.