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True or false?

Bonus question What does the background image show and where is it of?. True or false?. ANTIMATTER. Bonus question What does the background image show and where is it of?. True or false?. 1. An anti-electron is called a proton. Bonus question

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True or false?

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  1. Bonus question What does the background image show and where is it of? True or false? ANTIMATTER

  2. Bonus question What does the background image show and where is it of? True or false? 1 An anti-electron is called a proton.

  3. Bonus question What does the background image show and where is it of? True or false? 2 In pair-production, matter is converted into energy.

  4. Bonus question What does the background image show and where is it of? True or false? 3 Annihilation would result if 2 electrons collided with enough energy.

  5. Bonus question What does the background image show and where is it of? True or false? 4 Photon energy must not exceed a maximum for pair-production to result.

  6. Bonus question What does the background image show and where is it of? True or false? 5 Annihilation always results in the production of a single photon.

  7. Bonus mark 6 What does the background image show and where is it of?

  8. A Galactic Cloud of Antimatter

  9. A Galactic Cloud of Antimatterhttp://antwrp.gsfc.nasa.gov/apod/ap970501.html From NASA “The centre of our Milky Way Galaxy is full of surprises. Its latest spectacular is a mysterious cloud glowing in gamma rays produced by annihilating antimatter particles! Positron/electron annihilation energy is emitted as gamma rays with photon energies of 511,000 electron volts. Searching for these high energy photons, the OSSE instrument onboard NASA's orbiting Compton Gamma Ray Observatory has recently produced this map of the Galactic Center (GC) region. Asanticipated, it shows annihilation gamma rays as a bright spot at the GC with fainter horizontal emission from the galactic plane. Astoundingly, it also reveals a large and unexpected cloud of annihilation radiation, probably about 4,000 light years across, extending nearly 3,500 light years above the GC. What could have created this cloud? Associated with no previously known object, it seems to imply that a fountain of antimatter positrons streams from the GC. Present guesses about the source of the positrons include the violent and exotic environments surrounding starbirth, neutron star collisions, and black holes at the GC.

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