Across
- 3. is a sophisticated and versatile calculating instrument for performing a wide variety of geometrical and arithmetical operations, making use of the proportionality between the corresponding sides of two similar triangles.
- 4. instrument for viewing distant objects, named after the great Italian scientist Galileo Galile
Down
- 1. the condition of a fluid or plastic solid at rest, which occurs when external forces, such as gravity, are balanced by a pressure-gradient force.
- 2. made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density