This type of cable is commonly supplied in ready made DIY telephone extension kits; the type that are plugged in rather than require hard wiring. The reason this cable is so common is that it is very cheap and it is easy to install the connectors on the end.his cable is used for and works well for voice and ADSL as its twisted pair construction provides some resistance to interference. As the CW1308 cable is essentially the same spec cable is used throughout the whole telephone network, it known to work well.
How are visible light waves made? Visible light waves are made when a photon is emitted from a source and has a frequency, or the correct am mount of energy, to create visible light at a specific color.
This article explains light energy for kids in an easy-to-understand manner. Read on to find out more about light, its sources, colors, transparency of materials, shadows, and so on. Light is a form of energy that our eyes can see. It is made up of billions of tiny particles known as photons. It is not matter because it has no mass and does not occupy space. It also travels in a straight line. It travels at a very fast speed -- 299,792,458 metres per seconds to be exact.