Blinding light

In chem today Mr. Olson did a demonstration with us that was really bright. He took us outside and he had 4 volunteers. The volunteers took a string of some kind of metal and light it with a lighter. Once the metal thing caught on fire it made this bright light like it was as bright as the sun it ws pretty cool, but once you looked at it it blinded your eyes it was awesome. I thought the demonstration was great and bright and blinding. :)