I was challenged to create electricity to support this beast. It's Volkswagens carbon-fiber dual engine faster than a Formula, one electric supercar for the upcoming infamous 12 and 1/2 mile Pikes Peak race to the top of a really high mountain in Colorado, and they gave me no further instructions on how they wanted it done. So I thought how cool to be to charge it up using one of those science, fair, lemon batteries and since I'm pretty sure, using only one lemon isn't going to cut it. My plan is to build the Guinness world record world's largest lemon battery and when it comes to making ridiculous things, no one is better at that than fellow YouTube engineer.

William P Osmond, oh, the first video I saw of yours was when you bio, hacked your dog. How did that work not? Well, we tried to dangle a hot dog in front of a dog's face on a mechanical backpack, and then you can steer the hot dog to try to get the dog to change directions and what he ended up doing was sitting down and eating him. So we got some inner. This should take about three days for us to build, and yet I've only allotted two minutes for this in the video.

So you know what that means. You plan on your videos. We didn't want our battery setup to just be a mangled mess of wires. So William had the brilliant idea to waterjet out a bunch of copper and zinc strips, which we can then assemble into racks.

Who are the first half of the racks to be in parallel, and that was in series with the second half of the racks, which were also all in parallel and then at that point, all we had to do was impale some lemons, speaking of which, in addition To harvesting from my own backyard, I visited some local farms and got their class two lemons, which means they couldn't be sold in stores because they were either overripe, miss shapen or too small, and when one finds oneself in possession of 1232 lemons turns out. You can't not do this so here we have the world's largest lemon battery and now is the moment of truth to see just how much power this could actually make for us. But in order to understand the results, let's first review how a lemon can even make power in the first place, the trick is picking the right metals to stick into the lemon. In this case, zinc really wants to get rid of electrons, and then copper really wants to collect them, but they can't do that unless they're connected by some kind of electrolyte and that's the lemon juice.

Once that happens, an electrochemical reaction occurs. The bass and the electrons can now move and moving. Electrons is the very definition of electricity. It's sort of like how the water up high in the full cup naturally wants to flow to the empty cup lower down, but it can't do that until you connect the two with the straw which allows the water to flow.

So in this case, obviously the higher cup is listening. The lower cup is the copper and the straw is the lemon, and so then the flowing water represents our electricity or power, and so with that we were measuring gift under five volts and the short-circuit current is not great mark. Basically, our love and battery is awful. Yeah, like it's impressive, no, the fact that it works as well as it does is cool, but as well as it works is not well does that make any sense.

It's like it's and to quantify the suckiness better. You can listen to a motor running off our 1,200 lemons versus a single double-a battery. So what was looking good for the car, but we weren't about to let three days of work go down the drain so because the battery produces so little power. We use a tiny, tiny high gear ratio motor fifteen hundred to one to charge up our potential energy, which is more lemon, so it should take about 15 minutes to lift this bag, and then we can release that all at once to activate our lemon juicing mechanism.

Basically, like all of these guys are working together to like drain the lifeblood from one of their brethren. Maybe this is too dark. Okay, William moment of truth, I am so excited. Give me some of that cheers: Cheers oh wow, refreshing organic, not worth 10 hours.

Amazing. 12 hours totally worth it, this is the most expensive glass of lemonade. You will ever have yes that activity the fact the wind in my book, I'm gon na finish this, I'm not so we let the lemons trickle charge for a couple days and after that, the total power we harvested for the Volkswagen racing team was the equivalent of A single double-a battery - and I should mention that since the race team is busy getting the car ready for the race in Colorado, they have sent me this monstrous 48 kilowatt hour battery that can drive itself. So the plan is, I will add, any power we generate here in California to this battery and then get this to them in time for the race in Colorado, so the measly lemon power is now inside, but clearly I need to think of a plan B.

Luckily, I had an idea which is to take some pulleys and a skateboard wheel and a brushless motor, then some custom, machined aluminum plates and a steel cable to make a zipline with regenerative, braking to charge a drill battery and it seems to actually be working all I needed now was a party with some family friends and their kids. This is how much energy is in the battery. We need to get it from empty all the way up to the full. That's where I need you guys, because what happens is as you go down on this zipline, it charges the battery the worst part about a zipline is when you have to go down and then drag it back up the hill, but I've got a little remote control Here watch this: is that cool you guys want to ride that you ready mechanical advantage of the sloped Hill disguises it well, but the amount of energy they are adding to our zipline system here by running up the hill.

Just one time is the same: energy used for the world record dead left until provide power to their leg muscles. We repurposed our lemon battery lemons into fresh lemonade and everyone had to take a drink before running up the hill because, as I say when life gives you 1200 lemons, make lemonade, then force kids to drink it to power, your regenerative, the blind. So the zip point was awesome and we ended up charging up one of these portable drill batteries, plus a little more now for those of you keeping track at home. Here's how I'm doing so far the limits have enough power to move the supercar about this.

Far on a soccer field, and then with the lemonade and the kids muscles in the zipline, it can now travel an additional two soccer fields. The problem is, the race is 200 soccer fields, long, which means if we were to try and charge the car we'd be 198 soccer fields short, so clearly that kind of power will not be breaking any records. So I've got to come up with a plan C and to do that, I'm gon na harness the power of the Sun and a 19 sight. I probably should have started here because if you think about it, all the energy sources we use are actually solar power.

Oil and coal and natural gas, it's just old decayed plants and swamps that originally got their power from the Sun using their leaves and photosynthesis. Even things like wind turbines are really solar powered because the wind blows when the Sun heats up the atmosphere unevenly. In the case of hydroelectric dams, the water got to the lake on the high side because of rain from the clouds and clouds a result of water that has been evaporated by you, guessed it, the Sun. As humans.

We are even solar power because we get our energy from plants or animals that ate plants which again get their power from the Sun. So if I was looking for some energy to fill up a battery instead of indirectly and inefficiently, going through a bunch of different energy sources and losing a bunch at every step along the way, it makes way more sense to just go directly to the source. And so with that in mind, I busted out the power tools and put 24 100 watt solar panels over our garage, but there was a problem with this when NASA sent the solar power twin Rovers to Mars in 2004, it didn't take long until the solar panels Were totally covered in dust which effectively crippled the rover because they couldn't get as much energy from the Sun, and this was a huge issue, but then we got lucky and a mini tornado came by and clean them off, restoring the power it turns out. These mini tornadoes are actually pretty common on Mars, which is why she is still driving around today, nearly more than 14 years later.

This is also a part way on the next Rover we sent to Mars. We just killed the issue altogether and slapped a nuclear reactor on the back and, while California isn't Mars, it does get pretty dusty here. So, to ensure that wouldn't happen to me, I mined it over some really smart to engineers, scientists and creators and after explaining the problem and demonstrating how severely it limits the power output from the panel's. I challenge them to come up with and build a solution and because our brains use up 20 % of all the energy our body produces.

I made them drink more lemonade to ensure I got an optimal solution, and so, after pitching each other their ideas, they settled on one and got to work. Personally, I thought it was brilliant and it's worked extremely well and after they left, I hooked it up to my lawn sprinkler system, so they go off for a few minutes. Once a week now, and so after a few days of being bombarded by photons from space, we finally had the battery all charged up to full capacity. So in the end I learned a lot too and we actually pulled it off and now, if you'll excuse me, I have an urgent delivery deadline to meet in Colorado.

Okay, you like utilize that okay.