6.+Pulsar

__**Pulsar:**__

The Vela Pulsar Show's............. a pulsars magnetic axis, rotation axis .......................................and it's magnetic field lines.

__**Description:**__ Pulsars are simply spinning **Neutron Stars**, they get the name Pulsars because they appear to **pulsate** when they are actually rotating. Pulsars emit beams of **radiation**, these **beams** sweep through the Earth's line of sight. These pulses which we see are due to a **misalignment** of the neutron star's rotation axis and its magnetic axis. This radiation can only be observed or viewed when the beams are pointing towards Earth.

A pulsar can be compared to a lighthouse, a flow of light which continuely spins around as shown in the diagram below. The observation periods for pulsars are **approximated** to be between 1.4milliseconds and 8.5 seconds. The first person to discover a pulsar was a british graduate student Jocelyn Bell Burnell, she, with her thesis **advisor** Antony Hewish discovered the first radio pulsars in February of 1968. At first they did not know it was a neutron star or a pulsar, they thought it was an LGM (little green men) and had initially seen it as a **beacon** from an alien source. Antony Hewish won the nobel prize for this discovery. Shown below is Jocelyn Bell Burnell.



Here is a video about pulsars and how they are created.

media type="youtube" key="jBX6WOK72Kg" height="344" width="425" There are various reasons why pulsars are inhabitable, firstly; pulsars are rotating neutron stars, and a neutron star is a star, and on stars there is no water or oxygen or any signs which show promise of being able to **sustain** life.
 * __Habitability:__**

Also, pulsars send out ongoing flows of radiation, these flows of radiation would be would be deadly to any human near them, this means that they would almost be certainly facing death, if anyone tried to or did reach a pulsar.

Without water or oxygen us as humans cannot live, and as pulsars do not provide these things it is obvious that life cannot be sustained on a pulsar.
 * __Justification:__**


 * __Glossary:__**
 * Neutron Star:** a star that has collapsed under its own gravity; it is composed of neutrons
 * Pulsate:** expand and contract rhythmically; beat rhythmically
 * Radiation:** energy that is radiated or transmitted in the form of rays or waves or particles ,the act of spreading outward from a central source
 * Beams:** a group of nearly parallel lines of electromagnetic radiation, a signal transmitted along a narrow path
 * Misalignment:** the state of being misaligned
 * Approximated:** an estimate
 * Advisor:** an expert who helps and gives advice
 * Beacon:** a signal for navigational purposes
 * Sustain:** to provide the necessities for a prolonged period of time