With this calculator you can calculate the gravitational acceleration of a body pulled by another body. The calculator will also help to calculate the distance between the centers of the attracting bodies and the mass of the body producing the gravitational field and attracting the body for which the gravitational acceleration is given.

Rectangle calculator will help you calculate the diagonal of the rectangle, the side length, height, area of the rectangle.

Playfair cipher online encoder and decoder. Encrypt and decrypt any cipher created in a Playfair cipher.