Lectionary Calendar
Tuesday, November 5th, 2024
the Week of Proper 26 / Ordinary 31
Attention!
StudyLight.org has pledged to help build churches in Uganda. Help us with that pledge and support pastors in the heart of Africa.
Click here to join the effort!

Bible Encyclopedias
Barometric Light

1911 Encyclopedia Britannica

Search for…
or
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
Prev Entry
Barometer
Next Entry
Baron
Resource Toolbox

The luminous glow emitted by mercury in a barometer tube when shaken. It was first observed by Jean Picard, and formed the subject of many experiments at the hands of Francis Hawksbee. The latter showed that the Torricellian vacuum was not essential to the phenomenon, for the same glow was apparent when mercury was shaken with air only partially rarefied. The glow is an effect of the electricity generated by the friction of the mercury and the air in the barometer tube.

Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Barometric Light'. 1911 Encyclopedia Britanica. https://www.studylight.org/​encyclopedias/​eng/​bri/​b/barometric-light.html. 1910.
 
adsfree-icon
Ads FreeProfile