From general relativity we know that only in local inertial frames does the measured speed of light equals the nominal speed of light (299792.458km/sec).
Wcs is a software for fast polaralignment of astronomical mounts. you nail your alignment within 20 minutes!
Moonsighting, islamic calendar, prayer times, and qibla direction
The unique website devoted to real and pure arabic magic and astrology to assisting and training people just like you in the craft of white magic. we also offer many services to the seekers of ...