5 ms·
> tear-strips on consumer packaging are an example of this The ring pull on a can might be a better example. Tear-strips are notoriously unpredictable.
by scoot 7y ago
> tear-strips on consumer packaging are an example of this
The ring pull on a can might be a better example. Tear-strips are notoriously unpredictable.
- leobakerhytch 7y agoNice video on the design and manufacturing of aluminum drinks cans here: https://youtu.be/hUhisi2FBuw https://youtu.be/hUhisi2FBuw The whole thing is pretty ingenious, but the way the internal pressure helps vent the can while the tab is acting as a second class lever, then as soon as it’s vented becomes a first class lever to push the scored section of the top into the can — that’s great engineering.
- jacquesm 7y agohttps://news.ycombinator.com/item?id=8098146 https://news.ycombinator.com/item?id=8098146
- Pinus 7y agoIsn't there an ancient joke about an aircraft manufacturer having problems with the wings breaking off, and some engineer suggesting performating the wing roots, because have you ever seen toilet paper actually tear at the performation?