pleasing senses or mind aesthetically.

joining or merging of different parts. Series of letters or numbers needed to open a lock.

Existing or happening before the present time.

Ability of a screen or camera to display pixels.

To calculate how much something will cost.

Study of the physical world, based on facts.

microscopic particle in space or of extraterrestrial origin which is small enough not to burn up in earth's atmosphere but to drift to surface instead.

apparatus for photographing or otherwise recording spectra.

eleventh month of year, in northern hemisphere.

To turn something on.

band of colours, as seen in rainbow, produced by separation of components of light.

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. slide or cause to slide into itself, so that it becomes smaller.

Being in attendance; being there; having turned up. period of time now occurring. To show something to someone who will examine it.

To make a public statement about a plan, decision.

gathering of people. Groups of people gathered for a purpose.