Discover the surprising history of 'limelight' — from fiery 19th-century theatre tech to a modern-day phrase for fame. Here's what it really means and where it came from.

We learn that the first jigsaw puzzle was a map, and that a small pellet of lime, when burned with an oxy-hydrogen flame, produces a light bright enough for surveyors to see at a distance, even in ...

An oxyhydrogen flame (a mixture of oxygen and hydrogen) heated a piece of quicklime until it became white-hot, creating incandescence. Sanitary Hospital Walls ...

A spectrogram of the light oemitted when metallic iron burns in the oxyhydrogen flame, notably rich in lines due to the metal, has been studied. Sixty-four lines of iron have been identified in ...

DIY Oxy Hydrogen Torch Using Water Electrolysis. Posted: June 2, 2025 | Last updated: June 2, 2025. In this video I put a combined output electrolysis device to use by making an HHO micro torch.

I introduced into an oxyhydrogen flame, placed between the poles of a Ruhmkorff’s electromagnet, a filament of asbestos soaked in common salt. The light of the flame was examined with a Rowland ...

This powerful light, now on trial at Old Point Comfort, is an improvement on the old Drummond light. It is produced by the combustion of pure lime -- oxyde of calcium -- in the flame of the oxy ...

This Blowtorch Creates a Flame Using Water Researchers say the SafeFlame is gentler, ... much of the team’s work involved addressing aspects that made oxyhydrogen torches so costly, ...

Invited to lecture on chemistry at the Surrey Institution, he developed this oxy-hydrogen blowpipe, a device which safely burnt oxygen and hydrogen together, creating a very hot flame.

The combustion of Oxyhydrogen produces water vapor and does not produce CO2 emissions. The gas pressure inside the gas generator can be very low (<7 psi). The brazing operator does not need to wear ...

In the era before electricity, theater actors and artistes sought to appear, and stayed for longer period of time, in the area of light, or the so-called limelight area, where the stage was lit in an ...