Collecting in the 21st Century
Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments | September 27, 2018
Collecting in the 21st Century
The decline in the antiques trade might be a wholly unnatural phenomenon. Is it about to rebound with a rise in the collection of technology?
Antique Pocket Barometers on Screen
Vavasseur Antiques - Antique & Vintage Aneroid Barometers, Barographs & Other Scientific Instruments | September 20, 2018
Antique Pocket Barometers on Screen
It’s been an interesting September for Vavasseur Antiques with two unusual enquiries for antique pocket barometers. The first was from a UK production company seeking an antique pocket barometer as a prop for the lead character in a forthcoming TV series. Unfortunately, as the programme was set in 1830s, as pocket barometers weren’t invented until Negretti & Zambra rose to…
A Moment of Calm in This Hectic World...
Barometers in Action, Weather | April 12, 2018
A Moment of Calm in This Hectic World…
Mark has recently enhanced his test equipment and is now able to film barometers under pressurised conditions. This short clip shows the unusual Casella pocket barometer, made for the Royal Geographical Society c1930, replicating the effect of descending from 25,000ft to 12,000ft – and it only takes 27 seconds!     For more information about the RGS pocket barometer, click…
Harrison's Chronometer and the Determination of Longitude
History of Aneroid Barometers | October 29, 2017
Harrison’s Chronometer and the Determination of Longitude
The Science Museum recently posted a very interesting blog about the story behind John Harrison and his portrait at the Royal Observatory. In its own way, the invention of the aneroid barometer by Lucien Vidi and its determination of altitude was as significant an invention in the 19th century as Harrison’s was in the 18th. https://blog.sciencemuseum.org.uk/portrait-mr-harrison-timekeepers/