Aqueduct
For a point in space (or from a distant light object), spherical waves are emitted. From a point source on the surface of a liquid, circular waves will come out. In both cases the source will be the focus of the emitted waves.
Each input source comes into the mixer through a channel. The more channels a mixer has, the more sources it can accept.
A qanat is an underground water management system that channels water from an underground source to the surface for irrigation and domestic use. It uses gravity to transport water through a series of tunnels and access points, providing a reliable and sustainable water supply in arid regions.
The waggle dance.
The redshift of distant galaxies.
Distant sounds may be heard due to the presence of sound waves traveling through the air or other medium from their source to your ears. The farther away a sound source is, the more it may be affected by factors like air resistance and interference, leading to it being perceived as distant.
They get distant and more quieter
still looking for answers i dont know..
In choosing these channels, the sender is eliminating any extraneous information a richer source might include, keeping the content of the message clear and focused.
ATP or Adenosine Triphosphate is the form of energy currency used by cells.
The Best source I've found is at the related link below, but you can frequently find a good buy on eBay.
For a disease to continue and spread, there must be a continual source of the disease organism. This source can be either a living organism or an inanimate object. :D