Over 250 noteworthy Climategate 2.0 e-mails detailing the doubts within the catastrophic human-caused warming crowd about data, assertions, and IPCC trustworthiness, plus the cozy relationship the small, tight CH-CW group enjoys with the media.
Werner Heisenberg's original proposal was somewhat different than how it is interpreted today. As a recent paper in Physical Review Letters explains, Heisenberg's original statement was about error and disturbance in a measurement process. Over the years, however, Heisenberg's original proposal has been restated in terms of the uncertainties intrinsic to quantum states.
Measurement Uncertainty and Probability (Hardcover)
Researchers from the Physikalisch-Technische Bundesanstalt (PTB) have thoroughly analyzed the noise processes in their optical lattice clock with neutral strontium atoms. This analysis proves that their optical atomic clock has reached the best stability worldwide thanks to a newly developed laser system whose frequency is extremely stable. This allows high-precision measurements in a short time and considerably facilitates the future reduction of the total measurement uncertainty down to a…
Features •Ideal for testing passive multiport and differential devices including signal testing on PCBs •Fast sweep speed and wide dynamic range minimize test times and maximize throughput •Excellent corrected directivity allows for less measurement uncertainty •Time domain with time gating option grants easier and faster fault identification •The LAN interface for remote control is more robust than USB and faster than GPIB •A common GUI and SCPI interface within the ShockLine™ family
Most accurate optical single-ion clock worldwide: Scientists reduce the measurement uncertainty of their ytterbium clock down to 3 E-18
Atomic clock experts have built an optical single-ion clock which attains an accuracy which had only been predicted theoretically so far. Their optical ytterbium clock achieved a relative systematic measurement uncertainty of 3 E-18.
PAMS is an electrical mobility size spectrometer designed for portable, mobile, or handheld aerosol sampling applications. It provides the number-weighted diameter distribution of aerosols over the entire submicrometer range (10 to 863nm) in one scan. The unit uses a nonradioactive bipolar aerosol charger to allow easy access to sampling sites with tight safety regulations. Its bipolar charger significantly reduces measurement uncertainty of larger particles in the submicrometer range.