Why do Pineapple and Kiwi Ruin Gelatin?

As far as I'm concerned, the video could just as easily be asking why thumbtacks or dog poo ruin gelatin because I'm about as likely to put them in my gelatin as I am to put pineapple or kiwi.

...because those fruits are nasty.

Sure, these acidic fruits denature the proteins that hold together gelatin meaning that they ruin the collagen network that keep the gelatin jiggly. That's what acids do, donchaknow.

I assume that highly basic foods would do that some thing, too.

Shocking Pickled Pumpkins! Halloween Science

Don't electrocute pumpkins at home.

And especially don't set up two forks with electricity running to and through them onto which you mount random produce...like pumpkins or pickles or jalapenos...that would be stupid.

But if you were to do that, soaking the pickles...or pumpkins...or whatever, I'd be okay if you soaked the produce in various ionic compound solutions so you could check to see if the ions produced different colors.

You know, if you wanted to do something totally stupid...just if...

We're Running Out of These Elements - Here's How

We need elements.

Lots of them.

Lots of lots of different ones of them.

Some of those elements aren't quite as plentiful as we might like them to be.

Actually, some of them are plentiful enough in total, but they're hard to recover...or they're only found in a very few places.

Either way, we're in danger of running out of a whole lot of elements - or at least in danger of not being able to get to those elements when we need them.

You may want to stock up on your cerium, ladies and gents.

Oxy-Acetylene Explosions at 330 000 fps | Fastest High Speed Camera on Youtube!

"I think this is bad idea," is my favorite quote from, I think, Lauri.

This video certainly isn't as bad an idea as heating a jackhammer up past its BCC -> FCC phase change. In fact, I think this video's a pretty great idea.

The video is a super slow motion look at the combustion of acetylene gas, producing a gorgeous, bright blue flame that I can't even see in real time.