Newsletter for Thursday 1 May

TODAY IN SCIENCE HISTORY NEWSLETTER - 1 MAY

Feature for Today

On 1 May 1924, the first iodized table salt in the U.S. went on sale at grocers in Michigan state. The table salt contained 0.01% sodium iodide as a dietary supplement, since an adequate intake of iodine reduces the incidence of goitre (a major swelling of the thyroid gland in the neck.) What we take for granted when buying salt at the supermarket nowadays was a major step forward in public health compared to a century ago in the U.S. For a short outline about how the use of iodine supplement was researched, and how significant it was, read Goiter Prevention from Minnesota Medicine (1922). You'll learn the names of some scientists that you probably have never heard of, but the importance of their work has lasted to the present day, since it has been essential for a healthy population.

Book of the Day

On 1 May 1851, the Great Exhibition of the Works of Industry of All Nations opened in Hyde Park, London, England. This was the first international exhibition to be held in any country. Housed in Paxton's magnificent Crystal Palace, it provided a showcase for many thousands of inventions. The legacy of the Great Exhibition of 1851, still lives on today. Several great institutions were founded with the profits, including the Victoria and Albert Museum and Imperial College. Scholarships which were setup and still continue reaped an immense contribution to the world's body of knowledge. Recipients included several Nobel prize winnners: one scholarship went to Rutherford, a son of a New Zealand farmer. Today's Science Store pick is The Great Exhibition of 1851: A Nation on Display, by Dr. Jeffrey A. Auerbach. This illustrated account reveals how the exhibition was conceived and planned, why it was a success and what it meant to the millions of visitors. Available Used from $24.23 (as of time of writing). Yesterday's pick:: Ants, Bees, and Wasps: A Record of Observations on the Habits of the Social Hymenoptera, by John Lubbock For picks from earlier newsletters, see the Today in Science Science Store home page.

Quotations for Today
	"In the study of this membrane [the retina] I for the first time felt my faith in Darwinism (hypothesis of natural selection) weakened, being amazed and confounded by the supreme constructive ingenuity revealed not only in the retina and in the dioptric apparatus of the vertebrates but even in the meanest insect eye. ... I felt more profoundly than in any other subject of study the shuddering sensation of the unfathomable mystery of life." - Santiago Ram�n y Cajal, Spanish histologist who was awarded a Nobel Prize for his studies of the retina (born 1 May 1852)
	"Not one of them [formulae] can be shown to have any existence, so that the formula of one of the simplest of organic bodies is confused by the introduction of unexplained symbols for imaginary differences in the mode of combination of its elements... It would be just as reasonable to describe an oak tree as composed of blocks and chips and shavings to which it may be reduced by the hatchet, as by Dr Kolbe's formula to describe acetic acid as containing the products which may be obtained from it by destructive influences. A Kolbe botanist would say that half the chips are united with some of the blocks by the force parenthesis; the other half joined to this group in a different way, described by a buckle; shavings stuck on to these in a third manner, comma; and finally, a compound of shavings and blocks united together by a fourth force, juxtaposition, is joined to the main body by a fifth force, full stop." - Alexander William Williamson, English chemist (born 1 May 1824)
	"Knowledge of Nature is an account at bank, where each dividend is added to the principal and the interest is ever compounded; and hence it is that human progress, founded on natural knowledge, advances with ever increasing speed." -  Grove Karl Gilbert, American geologist and geomorphologist (died 1 May 1843)

QUIZ
Before you look at today's web page, see if you can answer some of these questions about the events that happened on this day. Some of the names are very familiar. Others will likely stump you. Tickle your curiosity with these questions, then check your answers on today's web page.
Births
	Today is the birthday of an American astronaut and aquanaut, born in 1925. He was not only one of the original seven Mercury astronauts to be one of the first humans in space (1962), but three years later, he was one of the first humans to live under the ocean in Sealab II. Can you name him?
Deaths
	Herman Frasch was a German-born American petroleum scientist who died 1 May 1914. He is now best known for the efficient process he patented in 1891. It  involved drilling into the ground and melting. Yes, melting - so it wasn't designed to pump petroleum from the ground, but something else. It uses three concentric pipes in the bore hole. What was the product? In one purified form it's yellow. Can you name the product?
	Describing blood coagulation and isolating fibrinogen, the key protein in that process, are this British anatomist's claim to fame. He figured all this out before he died 1 May 1774. Can you name him?
Events
	Programs are so basic to the operation of computers, that you should know the name of this beginner's new computer language that ran its first program on 1 May 1964 at Dartmouth University. Can you name the computer language?
	On 1 May 1935, this huge dam was finished after 4 years and 354 days. This should be easy to name. Can you name the dam?
	Just four years earlier, on 1 May 1931, another huge building project was dedicated by the U.S. President. You must know this name of this structure. It's tall. It's in New York City. Can you name the building?

Answers

When you have your answers ready to all the questions above, you'll find all the information to check them, and more, on the May 1 web page of Today in Science History. Or, try this link first for just the brief answers. Fast answers for the previous newsletter for April 30: Gene Shoemaker; Dutch; the number of chromosomes is the same in all body cells of a single species; the Kon Tiki; Erwin Schr�dinger.

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