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Filmen und Buchen beide ausserste Starke haben. Nostalgik, Romantik, Tragedie und humor bestehen aus den ahnlichen Qualitaten, die Filmen und Buchen teilen. Sie sind in einem feinen Gleichgewicht, obwohl,...

Of the nearly 100,000 men who died fighting for Kirk, King or Parliament in conflict in the 1640’s all, in an age of deep and almost universal piety, were motivated, to a greater or lesser extent, by reli...

Sodium oxide has a formula of Na₂O. Since sodium is a metal and oxygen is a non metal, sodium oxide is an ionic species. Sodium will lose an electron to form a cation and oxygen will gain 2 ele...

Mirrors can be made much larger than lenses (meters compared to around 1m max). Mirrors do not produce chromatic aberration. Mirror glass does not need to be as high quality as lens glass. Mirrors produce...

E = hfE = energyh = planck's constant = 6.63 x 10^-34f = wave frequency
c = fλf = c/λ
E = hc/λ
c = 3.0 x 10⁸ The speed of light which in this case is the speed of the ...