I think human emotion reflected in a face are pretty uniform. I think a stick figure face looking horrified and terrified and a stick figure hand flattened in front would be a univeral NO understood by anyone from any time.

Here is my suggestion: A picture of a DNA strand being fragmented by an arrow with a wavy shaft. Maybe the arrow should start from the picture of an atom.

The assumption of course is that we will retain our knowledge over the next 10,000 years of what DNA is, and that it's not a good thing to have it shattered.

BTW I spent a while trying to draw this in and send it, but seems I can't attach a file.
Cheers

Nukes = No Future

What worries me to distraction is the tens of thousand of nuclear devices and applications which will surely be abandoned when the Homer Simpsons of the future leave off ministering as the tide rises and the sun sets on our way of life. For without the expertise and TLC of the Homers all the nukes will someday go fizz.

If you happen at the time to live in a small island place like say, Japan, you will have no chance at all (About one nuke site about every couple of miles, is it?). Even a larger area, France maybe, better mend fences with the neighbors because that is where they will all be living when les nukes go les critical. The folks won't even know what's hitting them.

So if we want to do the kids' kids' kids a big favor we will stop building any more of the bloody things.
At the first hint of a general systemic failure in technical sustainability, we must spend whatever it takes to dismantle, decommission and stash away as best we know how every single nuclear machine on the planet. Nothing less will even begin to redeem the lack of foresight in a reckless, feckless tribe like ours.

http://www.noabominoidshere.blogspot.com/

Hey, we had the technology to create this waste, let us involve the world wide scientific community to create the technology to make it safe. Problem complicated? yes, of course. I should think that this would be the more prudent course. I consider myself a steward of my land and the earth as well as all of us should. Prevent the time bomb in the first place! Thanks! -Bob.

I remember reading something about this in a Popular Science back about 3-4 years ago. Later I saw something similar to this piece on the Discovery Channel.

But what I found to be the most interesting part is what is being done currently throughout the world. For example the idea that Japan is etching information and putting it in revered temples. This information was not covered in the article in PopSci (or maybe it was Wired) and the Discovery Channel and I'm glad that Studio 360 took the time to look at the future, but also the past and present.

It seems that any peoples of the future who cold dig down hundreds of feet will probably be sophisticated. so a mathematical message and one containing sophisticated symbolism the way it was put on those space probes, is probably the way to go. i'm thinking in particular of the chemical visual symbol of the substance that is radioactive that should be included. this would look boring to non-sophisticates and not encourage digging for treasures.