Actually, the group of bananas commonly referred to as a bunch at the store is actually a hand, or less commonly tier.
PSR B1509-58 - X-rays from Chandra are gold; Infrared from WISE in red, green and blue/max. A pulsar (from pulse and -ar as in quasar) is a highly magnetized, rotating neutron star or white dwarf, that emits a beam of electromagnetic radiation. This radiation can be observed only when the beam of emission is pointing toward Earth (much like the way a lighthouse can be seen only when the light is pointed in the direction of an observer), and is responsible for the pulsed appearance of emission.
Puristar R3-15 is a mixed metal catalyst composed of CuO and ZnO. It is used for the adsorptive removal of O2, CO, H2, and other industrial gases and liquids. Puristar R3-16. Puristar R3-16 is a high efficiency CuZn catalyst which is specifically made for the purification of polymer-grade ethylene. It also removes trace amounts of acetylene, arsine, phosphine, or sulfur that maybe present in the ethylene feed.