What does 3C stand for in astronomy?

The so-called Third Cambridge catalog (3C for short), published in 1959 by a consortium of British radio astronomers, listed several hundred bright radio sources in the northern-hemisphere sky. In those days, a radio telescope recorded a wavy line on a roll of chart paper.

Are electronics consumer goods?

Consumer electronics (CE) are part of our daily lives, and hard to imagine a world without them. Some of the products included in consumer electronics are computers, laptops, smartphones, TVs, tablets, gaming consoles, hearables, wearables, digital cameras, and VR & AR devices.

How is quasar formed?

A quasar is formed when a super massive black hole at the centre of a galaxy has enough material around it to fall into the accretion disc to generate the energy to power it. The only galaxies with enough material to create a quasar are young galaxies and colliding galaxies.

Is quasar a galaxy?

Quasars got that name because they looked starlike when astronomers first began to notice them in the late 1950s and early 60s. But quasars aren’t stars. They’re now known as young galaxies, located at vast distances from us, with their numbers increasing towards the edge of the visible universe.

Why are they called brown goods?

“Relatively light electronic consumer durables such as TVs, radios, digital media players, and computers, as distinct from heavy consumer durables such as air conditioners, refrigerators, stoves, which are called white goods.” Hence the term ‘Brown Goods. ‘

Is a quasar bigger than a galaxy?

For a quasar with an apparent size on a monthly scale, its maximum size would be several times that of our solar system, but far smaller than a galaxy. So far, all observed quasars have been found in this range, so all quasars will have maximum sizes of roughly that of the solar system or larger.

Was the Milky Way a Quasar?

If such a jet at the center of a distant galaxy points towards Earth we may see it as quasar. Hence the answer is most likely yes, the Milky Way or some of its predecessor galaxies will probably have had quasars at their centers, at some period when consuming lot of material, and seen from appropriate direction.

Is microwave electric or electronic?

A microwave oven (commonly referred to as a microwave) is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating.

What are black goods?

black goods in British English (blæk ɡʊdz) business. electronic goods which are housed in black or dark casings, such as televisions, CD players, etc.