A good science fair project using your spectroscope is testing ... the spacing between the colored lines. An incandescent light bulb produces a continuous spectrum because it is a heated solid ...

“We’re just checking it out,” Nathan said. Although he didn’t have an entry in the Chico Science Fair, he did work on a volcano project for his school science fair. He spotted a classmate ...

That’s what Ann Makosinski of Canada has done with her Hollow Flashlight, which won the 15-16 age group category of the Google Science ... light bulbs,” wrote Makosinski, 15, in her project ...

They effectively end the sale and manufacture of incandescent light bulbs ... and incandescent bulbs. Odds are good that replacing them with LED bulbs could save you a fair amount of money.

was previously billed as the "world's most energy efficient light bulb." That project raised $273,278 on Kickstarter last year and delivered over 7,000 bulbs to 5,746 backers. The Nanoleaf ...

Astronomers have a few tricks to help them do this, including using light bulbs and distant stars ... and her work regularly appears in Popular Science, New Scientist, FiveThirtyEight, Wired ...