hin as the edge; and one of a man's hand, taken for use
in a lawsuit, to prove that the bones of the thumb, which had been
crushed and broken in an accident, had been improperly set by the
attending physician.
[Illustration: THOMAS A. EDISON EXPERIMENTING WITH THE ROeNTGEN RAYS.]
Dr. Robb has made a series of novel and important experiments with
tubes from which the air has been exhausted in varying degrees, and
has concluded from these that it is impossible to produce the Roentgen
phenomena unless there is present in the tube an almost perfect
vacuum. Through a tube half exhausted, on connecting it with an
induction coil, he obtained merely the ordinary series of sparks; in a
tube three-quarters exhausted, he obtained a reddish glow from end to
end, a torpedo-shaped stream of fire; through a tube exhausted to
a fairly high degree--what the electric companies would call "not
bad"--he obtained a beautiful steaked effect of bluish striae in
transverse layers. Finally, in a tube exhausted as highly as possible,
he obtained a faint fluorescent glow, like that produced in a
Crookes tube. This fluorescence of the glass, according to Dr. Robb,
invariably accompanies the discharge of Roentgen rays, and it is likely
that these rays are produced more abundantly as the fluorescence
increases. Just how perfect a vacuum is needed to give the best
results remains a matter of conjecture. It is possible, of course,
as Tesla believes, that with an absolutely perfect vacuum no results
whatever would be obtained.
Dr. Robb has discovered that in order to get the best results with
shadow pictures it is necessary to use special developers for the
plates, and a different process in the dark-room from the one known
to ordinary photographers. In a general way, it is necessary to
use solutions designed to affect the ultra-violet rays, and not the
visible rays of the spectrum. Having succeeded, after much experiment,
in thus modifying his developing process to meet the needs of the
case, Dr. Robb finds
Notka biograficzna
Robert Laurence Bob Barr, Jr.[5] (born November 5, 1948) is the Libertarian Party nominee for President of the United States in the 2008 election.[6] He is a former federal prosecutor and a former member of the United States House of Representatives.[7] He represented Georgias 7th congressional district as a Republican from 1995 to 2003.[7][8]
Japonia Holandia dekoratornia dekoratornia dekoratornia English Walsh slowo S Serial www.wlatcy.info po prostu Czesio z kreskówki Włatcy Móch!Norman De Mattos Bentwich OBE MC (28 February 1883-8 April 1971) was a British barrister and legal academic who served as Legal Secretary and the first Attorney-General of Mandatory Palestine from 1918 to 1929. He was also President of the Jewish Historical Society. He was the eldest son of Herbert Bentwich.
Jack London (12 January 1876 22 November 1916)[1][2][3][4] was an American author who wrote The Call of the Wild and other books. A pioneer in the then-burgeoning world of commercial magazine fiction, he was one of the first Americans to make a lucrative career exclusively from writing.[5]