Despite the sci-fi name, this isn't radioactive, and it doesn't require batteries. It is a simple, 5-minute DIY project that allows you to see the contents of a sealed container without opening it.

one for rice, one for beans, and one for screws. Your future self will thank you.

You shouldn't open your 5-year emergency buckets of wheat just to "check on them." Every time you open a sealed container, you introduce oxygen and humidity, shortening the shelf life. With an X-Ray jar, you can inspect the food without breaking the seal.