13 Weirdest Games of 2013 Ok, this is weird.

Prev Chronic Dis ; We included 16 states that adopted the revised birth certificate. We also examined trends from through and included 21 states that participated in PRAMS for all 4 years. We combined GDM prevalence across 2-year intervals and conducted t tests to examine differences.

Do you want to become the ideal type of your bias? What’s an ‘Ideal Type’? As K-idols become more and more popular, many fans wonder what type of person they get fascinated by. Thus, idols’ ideal types get tremendous amount of attention. As soon as their ideal types are released, fans get.

History of mass spectrometry Replica of J. Thomson ‘s third mass spectrometer In , Eugen Goldstein observed rays in gas discharges under low pressure that traveled away from the anode and through channels in a perforated cathode , opposite to the direction of negatively charged cathode rays which travel from cathode to anode.

Goldstein called these positively charged anode rays “Kanalstrahlen”; the standard translation of this term into English is ” canal rays “. Wien found that the charge-to-mass ratio depended on the nature of the gas in the discharge tube. Thomson later improved on the work of Wien by reducing the pressure to create the mass spectrograph. Calutron mass spectrometers were used in the Manhattan Project for uranium enrichment.

The word spectrograph had become part of the international scientific vocabulary by Once the instrument was properly adjusted, a photographic plate was inserted and exposed.