Primary waves Secondary waves and Surface waves Primary (or P-waves) These waves can travel through fluids and solids and are longitudinal – this means they transfer […]
A sunspot is a temporary cool region in ‘s photosphere (the visible surface of the Sun) associated with an active region with a magnetic field intensity […]
The distance between Earth and Pluto varies considerably. At its closest Pluto is never closer than 2.60 billions miles. On the other hand both can be […]
Precession motion of polar axis is over a double right cone with semi-vertical angle ##23.4^o## and vertex at Earth’s center. The nutation compounds with this to […]