У вашего броузера проблема в совместимости с HTML5
In a break from inventing things, I thought I'd give my 2 cents worth on a recent tool purchase. It's a Porter-Cable angle grinder (Model #PC60TAG). There are some GOOD points, and some BAD points, and I'll cover them in detail.
Link to my Assembly Table build video (where my over-excitement to use this new shop toy got me into a bit of a pickle with the design):
http://youtu.be/cIdnl1Y_kB4