The human eye contains no mechanism for detecting color. Photoreceptor cells detect electromagnetic wavelengths and
convert them into electrical signals. The visual cortex then constructs the experience of color from those colorless frequency inputs. Every color perceived
by any human being in history was built inside the brain. The external world contains no color. Only wavelength.
Hubel, D.H. & Wiesel, T.N. Nobel
Prize in Physiology or Medicine. 1981.
This simulation shows the intricate geometric patterns formed by Mercury, Earth and Jupiter orbiting the Sun over time.
A beautiful demonstration of orbital mechanics driven by gravitational laws.
"Allah memberimu nikmat bukan karena engkau mulia. Tapi agar terlihat siapa yang sadar dan siapa yang lupa. Sebab, nikmat sejati adalah yang menundukkan hati, bukan yang meninggikan kepala."
Ibnu Athaillah