The day after tomorrow there will be a solar eclipse partial one at least and that's quite something you want to watch. But at least in Germany there are none of these special solar glasses to be had. Looking directly in the sun or doing some makeshift solutions to look at the sun directly is too dangerous. I came up with a solution based on a camera obscura. I've seen similar things on the internet already but I think mine is quite neat. Have a look at that. Now that is what your solar observatory is going to look like and that is what you'll need. The most important bit of course is the crisp roll, cardboard roll, anive glue tape, a center square if you have one drill with a 1.5mm bit, a hammer, a center punch and a few other household items. So where do we get started? First things first we need to find the center of the lid rather the bottom of the can. Find that with the center square. If you have one, if it's not precisely in the middle it doesn't really matter, it just looks neat if it's nice and tidy. Okay I'll put a block of wood into the roll to keep the bottom form being dented when I center punch it and drill the 1.5mm hole. Now you might want to experiment with different hole sizes. It's always a trade off between brightness and sharpness of the image. Right next we'll need the actual screen that the sun will project on and that'll be a cardboard disc somewhat smaller than the bottom of the can. Cut that out real quick and glue it to the plastic lid. Okay next you'll need sort of a window to look into the crisps roll and I make this 6cm deep and 4cm wide. That's good enough so even the kids can look in with both eyes open. Alright mark that out probably. And to cut that you should have a really sharp knife when with a serrated edge if possible. It makes it a lot easier. It's a bit dangerous so keep your fingers somewhere safe. So now that's that and well if you're a bit sloppy that'll already be the whole thing. But we'll want to make it a bit nicer and get rid of some of the ambient light that reflects in a surface of the cardboard roll. So I've got this dark cardboard. I need a 20cm bit that'll be not quite all the way around the inside of the can. Put some glue on it and place it inside the cardboard roll. The cardboard cylinder clean up the edges a bit. We can paint those round and it'll make nice edges. See that it all stays in place and let that dry for a moment. Once that's done just be on the safe side. Put some tape around the edges so it doesn't come loose. And that is basically it. Now if you find that your cardboard lets this cardboard screen let some light through from the bottom. If you're near a reflective building or something you might want to put some extra black masking tape over the white disc here at the bottom. The inside of course has to stay white. So that's where the sun comes in and that's where you'll see the image of the sun. Of course it's upside down as it always is for the camera of scourer. Today we won't notice that because there's no solar eclipse but you'll see it appears on the screen the other way around than it's in real life. Light goes in and here we got an image. You'll see it's a bit fuzzy around the edges but that's the trade-off between brightness and sharpness.