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Zip Line Made With Kevlar String !

As you may know, the Iron Man EDF flight system has been the central project around Hacksmith Industries for quite some time now. In the meantime, the crew could use a fun project once in a while to blow off some steam, and James needs to log some flight hours in preparation. Zip lines are easier than outright flight and still super fun, so the team has set about installing a zip line that runs from the back of the workshop to the derelict princess castle at the far end of the lot.

The zip line itself is made from kevlar string, rated up to about 2000 pounds of tension.  Some quick math suggests that with James flying along, the string will sag about five feet, and the resulting tension will be about 1800 pounds – 200 pounds shy of breaking while James’ body is on the line. Not exactly a safe margin for error, right?

Kevlar Zip Line Just DO It

That settles that. I guess it’s time to set it up and test it out.

Introducing Hack-A-Minute!

Introducing Hack-A-Minute! Videos on tips, tricks and life hacks in exactly one minute!
This week’s episode shows off a cool party trick you can do with the help of basic physics!
Few extra notes on this trick:
1. Corona bottles are by far one of the easiest types of bottle to break, so if you want to try it, start with those!
2. It is possible to do this with larger bottles — I once did a 750mL bottle!
3. You can’t do this with the original beverage inside — if it is carbonated, the cavitation turns to gaseous bubbles that do not implode!
4. BE CAREFUL! Practice over a garbage can and make sure you hold the bottle tightly — it is possible for the bottle to break and hurt you, although I’ve never had that happen.
5. Good luck!

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