Star-land : being talks with young people about the wonders of the heavens (1891)
Ball, Robert S. (Robert Stawell), Sir, 1840-1913 · London ; Paris : Cassell & Co. · leaf 354
by a little balloon which Stars. 339 ascends so prettily when filled with it. Hydrogen also burnsvery readily, though the flame is almost invisible. When Iblow a jet of oxygen through the hydrogen I produce alittle flame capable of giving a very intense heat. For in-stance, I hold a steel pen in… … Fig. 87.-The Pleiades. of interest to learn that hydrogen in some form or other is aconstituent of the most distant objects in space that thetelescope has revealed to us PHOTOGRAPH ING THE NEBULA. Of late years we have learned a great deal about nebula?,by the help which photography has given to…
Astronomy
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