The electrification of the Pennsylvania railroid
β Scribed by J.V.B. Duer
- Publisher
- Elsevier Science
- Year
- 1932
- Tongue
- English
- Weight
- 803 KB
- Volume
- 213
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Experiments showed that the exposure of a frost deposit to an airβstream caused ice splinters to be blown away from the deposit. These splinters were negatively charged if the airβstream were warmer than the deposit, and positively charged if it were colder; if they were at the same tem
The usual method of finishing the surface dressing is to roll the chippings with a 3-wheel roller weighing between 3 and 8 tons. Some authorities use steam rollers of ro or 12 tons and some do not use any roller at all. The cost of rolling is small; Grigson? gives it as 0.06d. per sq. yd. for fully
AN industry valued at some nineteen billions of dollars, cannot be rt~thlessly tampered with and escape serious economic disturbance, especially when it is closely interwoven with our national prosperity. The story of our railway development is part of the written history of the country. It is, ther