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If you get a link on a page with decent traffic (at least 200 hits a day) we'll give you a $20.00 coupon to our store.
Links can go to any page at our site and can be posted anywhere you like: blogs, forums or anywhere else. Just make sure we can verify that you were responsible for the link. We'll be giving away different stuff every week.
If you want to get the coolest coffee, the top seems like it would be the coolest because it’s exposed to cool air, but on the other hand, heat rises…
Are lock washers really worthwhile?
Maybe: the tension from a stretched screw or bolt is significantly larger than the tension from a lock washer, and the "edge" on the lock washer is unlikely to digg into the metal when it's squashed flat. However, for smaller screws that probably will not be sufficiently tightened, it seems likely that the lock washer will help. If the mating surface is soft, like a rubber or plastic gaskit, it's probably also helpful. There's a reason you never see lock washers on really big, structural bolts...
for more: our All About Screws Guide.
A group of electrical and mechanical engineers from Georgia Tech... starting a company to help hobbyists, researchers and anyone else making a prototype or one-off project... (expand for a little more)