electricity, solid fuel, fire(using wood), infrared light, light bulb or heat lamp, gas e.t.c
the earth interior
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No. A light bulb is.
They both burn easily with lots of heat.
For endothermic creatures, heat is an extra product of natural metabolism. On the flipside, exothermic creatures actually depend on heat from other sources (usually the sun) to do any of those metabolic processes.
Two categories of heat sources are natural heat sources and artificial heat sources. Natural heat sources include the sun, geothermal energy, and volcanic activity. Artificial heat sources include electric heaters, gas heaters, and oil heaters.
To brood artificially
Artificial heat sources include electric heaters, gas furnaces, and wood-burning stoves. Artificial light sources include incandescent light bulbs, fluorescent lights, and LED lights.
There's natural brooding and then there's artificial brooding.Brooding is breeding chicks in incubators. The localized heat type and the whole space type are the two main types of brooding.
layering, cutting, grafting and tissue culture
An infrared heat lamp type of electric brooder is recommended for brooding small groups of birds.
the sun gravitational compression of the still not fully compacted Earth (gravitational potential energy is converted to heat during compaction) radioactive decay comet and meteor strikes cosmic rays and neutrinos from extra-solar sources
No. A hen can go broody anytime. It is part of the chickens natural cycle and with domestic birds and artificial heat and light sources a hen can and will brood whenever the mood hits. There is no way to induce broodiness and it is sometimes difficult to stop if the hen sets her mind on brooding a clutch of eggs.
Sun is the primary source of heat here in the Earth. As time moves on, human developed new sources of heat and light. Some of it are the torches, lamps, candles and others
Heat and light can be generated from various sources such as the sun, fire, electricity, or chemical reactions. The sun is the primary source of both heat and light for Earth, while artificial sources like light bulbs and heaters use electricity to produce heat and light.
A hen that is brooding is preparing to sit on a clutch of eggs to begin the incubation.A brood of chicks is the result of the hatch.A brooder is a heated box that houses the newly hatched chicks from an artificial incubator.
The difference between natural and artificial sources of light is that natural sources are produced by the sun while artificial light sources illuminate using energy from other sources and include incandescent bulbs.