presented the paper of the evening, entitled " On the Ruling of Diffraction Gratings." The speaker reviewed the history of the ruling of gratings, and gave an account of the work of Rutherford, Rowland, and others. He pointed out the difficulties eocountered in making gratings of large size and high
Proceedings of the stated meeting held Wednesday, February 17, 1915
โ Scribed by R.B. Owens
- Publisher
- Elsevier Science
- Year
- 1915
- Tongue
- English
- Weight
- 69 KB
- Volume
- 179
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
โฆ Synopsis
Company, and the Electric Storage Battery Company of Philadelphia, presented an interesting communication on " Sanitation and Accident Prevention in Industry."
The campaign of education in accident prevention among the general public as well as among workmen was fully set forth and its importance upon the welfare of the community at large was pointed out. Attention was called to the necessity for guarding against accidents in the home, the workshop, and in public places, and the numerous devices now in use for the protection of workmen and others were described.
๐ SIMILAR VOLUMES
Andree had completed the inflation of his balloon and was awaiting a favorable wind. But on August 24th the VirKo arrived at Tromso, bringing back the expedition, which had abandoned its trip for this year owing to the lateness of the season.