Mars lander
In 1999, the U.S.
Mars Polar Lander was launched.
In 1970, a
fireball was visible over a large area of the U.S. midwest. The meteorite that
fell was the first to be detected by the Prairie Network operated by the
Smithsonian Institution's Astrophysical Observatory since 1964. Its path was
photographed by two of the system's 16 cameras funded by a NASA grant. Using
these records, scientists calculated the meteorite's impact point. Gunther
Schwartz, field manager of the network found the 21.6-lb meteorite six days
later within a half-mile of the predicted site, near the rural hamlet Lost
City, about 45 miles east of Tulsa, OK. The fast retrieval enabled examination
of radioactivity produced by the meteorite's exposure to cosmic rays, looking
for clues to how the universe was created.
Electric watch
In 1957, the
world's first electric watch was introduced in Lancaster, PA by the Hamilton Watch
Company. Research began in 1946, but it was to take more than ten years to
develop a viable watch. On this day, Hamilton held a press conference. The idea
of a watch which never needed winding was very exciting to 1950's consumers,
who were captivated by progress and modernity. The Hamilton Electric was an
instant hit. Its popularity was enhanced by a number of very dramatic case
styles with non-traditional asymmetrical styling; they were visual reminders of
the ultra-modern movements inside the case. By 1969, when production ended,
more advanced technology had already rendered the Hamilton Electric obsolete.
In 1919,
Professor Ernest Rutherford succeeded in splitting the atom. By
bombarding nitrogen atoms with alpha particles emitted by radioactive materials
he transmuted the nitrogen atoms into oxygen
In 1901, a
bill creating Wind Cave National Park was signed by President Theodore
Roosevelt. It lies 10 miles (16-km) north of Hot Springs, South Dakota, the
eighth U.S. National Park to be created and the first protecting a cave.
(Mammoth Cave in Kentucky was authorized as a national park in 1926.) For
centuries, Indians knew the entrance to Wind Cave, and its strong air movements in or out. The first
person reported to explore the cave was Charlie Crary in fall of 1881. It was
first systematically explored by Alvin McDonald from 1890 until his death, at
age 20, from typhoid fever in 1893. He had been hired for the job by the South
Dakota Mining Company. No minerals were found to mine, but the company may have
been interested in developing tours. The cave is noted for its rare cave
formations known as boxwork, a honeycomb of thin blades of calcite projecting
from veins in the walls and ceilings.
In 1888, the
first wax drinking straw and the spiral winding tube-making process was patented by Marvin C. Stone
in Washington, DC. Stone was already a manufacturer of paper
cigarette holders. His idea was to make paper drinking straws to replace the
use of natural rye grass straws. Stone made his prototype straw by winding
strips of paper around a pencil and gluing it together. He then tried
paraffin-coated manila paper, so the straws would not become soggy while
someone was drinking. The first straws were hand rolled, and by 1890 his factory
was producing more straws than cigarette holders.By 1905, he had also invented
a machine to roll his straws, necessary to keep up with the growing demand, and
new applications of spiral-wound tubing.
In 1871, Cleveland Abbe became
the chief scientist of the newly formed U.S. weather service. From 1 Sep 1869, he had been
preparing weather forecasts from his own private weather reporting service at
Cincinnati, Ohio, based on telegraphic reports. The U.S. Congress authorized
its new federal weather service, as part of the Signal Corps, on 9 Feb 1870.
Cleveland Abbe's experience made him a natural choice to be offered a leading
position, which from then became his lifetime career. Abbe not only developed
an extensive observing system for which he trained new personnel, but also
established a scientific foundation for the meteorological study of
forecasting, climatology and physical theory. The service was renamed as the
Weather Bureau when moved to the Department of Agriculture (1891).
In 1871,
oleomargarine was patented by Henry Bradley in Binghamton, NY. A "compound
for culinary use" called margarine. U.S. Patent No. 110,626.






0 comments:
Post a Comment