the actinide series, is highly radioactive. plutonium differentiates itself from the rest of the group by being one of only three primary fissile isotopes in use ( pu) – [the other two include u and u] – to produce and sustain a nuclear chain reaction when struck by a slow moving neutron. in fact, just...
the actinides group in the periodic table, a series ofelements known for their radioactivity. due to its radioactive nature and relative scarcity on earth, actinium has not historically enjoyed many commercial or industrial uses or applications; however, that may be changing with ongoing scientific...
and end-of-life management, it provides economic activity and jobs across europe. it is estimated that % of the raw material used to produce europe's flat glass originates from within europe. the flat glass industry has historically benefited from the availability of abundant high-quality silica sand...
correction of the optical aberrations: objectives, eyepieces, tube lenses, adapter for camera and tv. hc the objective is included in the hc system. hcx the objective is also compatible with optics of the past (delta optics ) the hc system ensures balanced optical and mechanical fitting dimensions,...
the apo - mm f . ex dg os hsm, an image-stabilised fast telezoom with ultrasonic-type silent focusing that provides a direct alternative to recent arrivals from canon and nikon. the all-new optical design uses two elements made of sigma's newly-developed 'fld' glass (plus three of sld glass) to reduce...
materials for automotive electro-mechanical assemblies, sensors and connectors recovery of precious & specialty metals recycling of end-of-life rechargeable batteries recycling germanium from electro-optic materials recycling jewelry for re-use of precious metals recycling of cobalt out of spent catalyst...
our hands-on preview of canon's new perspective control lens, the ts-e mm f . l ii. as one of the more interesting announcements of a somewhat uninspiring pma , canon's new ts-e design allows independent rotation of the tilt and shift axes relative to each other and the camera, answering the prayers...
the element continued to take advantage of its toxicity. a variety of arsenic compounds have been used as pesticides and herbicides and in wood preservatives, though the toxicity of such products to the humans working with them has led to their replacement by safer alternatives for some applications...