the days before limelight was supplanted by electric spotlights, it was rare for hydrogen to be the problem. Candles, gas and oil lights were more troublesome, and fireworks, firearms, matches, and cigarettes were also implicated. And oxygen could pose more of a problem than hydrogen. eter sharp fascinating blog on hydrogen, Mrs Rudder -- congratulations. enny lane Perhaps we can return to the days of gas lighting -- then we could have beautiful lights like the one above ttp://www.bloggercises.com Chris Champion Fascinating, as always, and I have learned the derivation of the word limelight. Subscribe Search Search for: About The Powerhouse Museum has a unique and diverse collection of 385,000 objects that spans history, science, technology, design, industry, decorative arts, music, transport, and space exploration. The large majority of these objects never get to be on public display, but carry with them interesting, humorous, and fascinating stories. This blog will introduce you to some of the Powerhouse Curators, Registrars and Conservators, their favourite objects, and the stories behind them.