Welsh Newspapers

Search 15 million Welsh newspaper articles

Hide Articles List

16 articles on this Page

WEEKLY COMMENTS.i

[No title]

[No title]

[No title]

Advertising

! LOCAL INTELLIGENCE.I

I OPEN SPACES.

Advertising

Death of Sir Arthur Stepney,…

ALLEGED BANK i IFORGERY. I

IURBAN COUNCIl. 1

IBradford House Annual Picnic.…

I MUSTARD AND CRESS.

Pontyberem Mining Classes.

A Scientific Invention.

News
Cite
Share

A Scientific Invention. BY A LLANELLY BOY. Mr. Ll. T. Jones, B.Sc., F.C.S., of Bingley Grammar School, has designed a simple appa- ratus which can be used by young students to measure the diffusion of gases. It consists essentially of a U-tube with one long and one short arm. The short arm, into which gas can be passed by a side tube, is closed with a piece of clay pipe-stem sealed at the top. To perform an experiment the gas is first passed through drying tubes and thence into the short arm of the U-tube. The longer arm is then filled with mercury. The gas in the shorter tube meanwhile will have been forced through the porous pipe, so that the shorter [ arm will now be full of mercury. The rate of diffusion under different pressures can easily be estimated. The apparatus can be procured from Messrs. W. and J. George; Ltd., of Great Charles Street, Birmingham.—" Nature."

BEFORE THE MAGISTRATES