I'll give you one, a syringe.

So, it's a normal looking syringe.

Access to needle and syringe programmes

This little syringe contains the moral molecule.

I was calm until I saw the syringe.

Second one can you light a little torch bulb with a battery bulb and one piece of wire?

A light bulb gives light.

Marc Koska 1.3m reasons to re invent the syringe

And it costs the same as a normal syringe.

You gotta carry the bottle, you gotta carry the syringe.

Thomas Edison invented the light bulb.

And that will stop reusing a syringe 20 or 30 times.

And your next question is, can you light a little torch bulb with a battery, a bulb and one piece of wire?

So, the light bulb actually does that.

He went off like a light bulb.

Harald Haas Wireless data from every light bulb

So the light bulb is what wired the world.

Now, here's how you do the battery and the bulb.

And I say, What is the light bulb good for?

And over the course of half an hour, not one syringe was filmed being unwrapped.

The light bulb was a fairly simple task, from their standpoint.

When Edison invented the light bulb, pretty much looked like this.

So, we had to design both the light and the light bulb.

They would each room typically had a light bulb socket at the top.

The killer app that got the world ready for appliances was the light bulb.

This young girl and her friend that I met in an orphanage in Delhi were HIV positive from a syringe.

You don't notice the subtle changes in the amplitude that we impress onto this light bulb.

First of all, we associate the click sound with a food reward, which is smashed banana and peanuts together in a syringe.

The response to a bad idea like, say, a tungsten light bulb is a better idea. OK?

We fit in an LED light bulb, worth three U.S. dollars, put in our signal processing technology.

So, you can put circuit components on the staples, like a light bulb and a light switch.

So the light bulb laid down the heavy infrastructure, and then home appliances started coming into being.

Basically they were able to light a 60 watt light bulb at a distance of about two meters.

We just want to try and create that awareness because, sure, changing a light bulb isn't going to change the world, but that attitude, that awareness that leads you to change the light bulb or take your reusable coffee mug, that is what could change the world.

They did have electricity, but it was illegal service tapped from someone else's wires, and could only power one feeble bulb.

And then they repackage them and sell them out on markets for literally more money than a sterile syringe in the first place, which is quite bizarre.

And you wonder, is it practical? And it turns out if I had not been Unfortunately, we have some light bulb changes.

All the appliances plug in there. And you would just unscrew your light bulb if you wanted to plug in an appliance.

Thomas Edison went through thousands of unlikely substances before he came upon the right one for the filament of his electric light bulb.

Look here, you see the seven billion people up there the air people, the wash people, the bulb people and the fire people.

What we have done is we have developed a technology with which we can furthermore replace the remote control of our light bulb.

And a light bulb went off, which was, first, that I didn't actually have to do the writing myself, I could find writers.

I don't know if you've ever been to a Jewish wedding, but what they do is, they take a light bulb and they smash it.

And then the next light bulb was, better than just writing, what about film and TV, to get out to people in a big way?

Governments should develop appropriate policies for high risk groups and promote a comprehensive package of appropriate services for injecting drug users, including needle and syringe exchange programmes and referrals for treatment.