reply to post by AncientShade
(Plasmaships) yes indeed, some travel on ionised particles.
ionized
i⋅on⋅ize /ˈaɪəˌnaɪz/ Show Spelled Pronunciation [ahy-uh-nahyz] Show –verb (used with object) 1. to separate or change into ions.
2. to produce ions in.
–verb (used without object) 3. to become changed into the form of ions, as by dissolving.
Ions
–noun Physics, Chemistry. 1. an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons, as a cation
(positive ion), which is created by electron loss and is attracted to the cathode in electrolysis, or as an anion (negative ion), which is created by
an electron gain and is attracted to the anode. The valence of an ion is equal to the number of electrons lost or gained and is indicated by a plus
sign for cations and a minus sign for anions, thus: Na+, Cl−, Ca++, S=.
2. one of the electrically charged particles formed in a gas by electric discharge or the like.
Others could go lets say right over head of a person and the person looking up would see nothing, why?
Because of this simple word called
REFRACTION: To change the direction of light.
re⋅frac⋅tion /rɪˈfrækʃən/ Show Spelled Pronunciation [ri-frak-shuhn] Show IPA
Use refraction in a Sentence
See web results for refraction
See images of refraction
–noun 1. Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into
another in which its wave velocity is different
Change the word medium which is an important one with density.
current density:
6. the degree of opacity of a substance,
meduim etc., that transmits light.
7. Photography. the relative degree of opacity of an area of a negative or transparency, often expressed logarithmically.
2. Ophthalmology. a. the ability of the eye to refract light that enters it so as to form an image on the retina.
b. the determining of the refractive condition of the eye.
3. Astronomy. a. Also called astronomical refraction. the amount, in angular measure, by which the altitude of a celestial body is increased by the
refraction of its light in the earth's atmosphere, being zero at the zenith and a maximum at the horizon.
b. the observed altered location, as seen from the earth, of another planet or the like
due to diffraction by the atmosphere.
dif⋅frac⋅tion /dɪˈfrækʃən/ Show Spelled Pronunciation [di-frak-shuhn] Show IPA
dif⋅frac⋅tion /dɪˈfrækʃən/ Show Spelled Pronunciation [di-frak-shuhn] Show IPA
–noun Physics. 1. the phenomenon exhibited by wave fronts that, passing the edge of an opaque body, are modulated, thereby causing a redistribution
of energy within the front: it is detectable in light waves by the presence of a pattern of closely spaced dark and light bands (diffraction pattern)
at the edge of a shadow.
2. the bending of waves, esp. sound and light waves, around obstacles in their path.
God I hope that helped or if I just confused everyone with it.
[edit on 27-8-2009 by menguard]