Building Blocks of Science (Nov, 1946)
If you are thinking of making this, keep in mind that 21 new elements have been discovered since it was printed. You can find out more at http://www.webelements…..
Building Blocks of Science
By HOWARD W. BLAKESLEE
Science Editor, The Associated Press
THE periodic table of the elementsâ€”the 96 metals, nonmetals and gases that form everything in the material universeâ€” is the blueprint of the atomic future.
This table states a very simple fact: Everything material is made of three kinds of particles; namely, neutrons, protons and electrons. The difference between any two elements, iron and oxygen, for example, is in the number of particles.
On a map, specific places are always at specific points. The periodic table is like that. It tells facts about the elements that never change.
Although the table does not show where to look for uranium, it indicates the likely mineral formations. It shows that the kind of chain reaction that makes uranium bombs cannot be achieved without uranium’s aid. It also gives the limits of the uranium reaction and guarantees that it will not explode the earth.
HOME EXPERIMENTS WITH HYDROGEN (Oct, 1936)
UPDATE: Somone on digg pointed out that if you look closely at the picture of the father and son filling a model Zeppelin on page two you can see that it says “Hindenburg” on the side.
HOME EXPERIMENTS WITH HYDROGEN
by VERNON TRACEY
HYDROGEN, the lightest of chemical elements forms a very interesting field of experiment for the home chemist. It can be produced easily in several ways for experimental purposes; one of the most common of which consists of the action of sulphuric acid on zinc.
A flask into which is dropped a few grams of zinc scraps is fitted with a rubber stopper, thistle-tube and delivery-tube as shown in the photo. The thistle-tube is fitted into the stopper so the end will be about 1/8″ from the bottom of the flask. The end of the delivery-tube is near the top of the flask. Dilute sulphuric acid is poured down the thistle-funnel and hydrogen is produced when it comes in contact with the zinc. The top of the thistle-funnel is covered with a piece of glass to prevent the hydrogen from escaping. The hydrogen flows out through the delivery-tube and is collected in a bottle over the pneumatic trough.