optical fiber ,twited pai,coaxial cable
Coaxial one.
A coaxial digital output (usually an RCA jack) can connect to a digital optical input using a coaxial to optical digital converter. This is a small box that goes in between the two products.
The LG LHB335 only has an optical digital inputs. If your cable box has an optical digital output, connect it to the Digital in #1 (TV) with an optical cable. If your cable box only has a coaxial (RCA) digital output and you want to use the digital audio connection, you will need to purchase a coaxial to optical digital converter. The Monoprice 2947 is less than $20.00.
It's very hard to tell because both have shields. Last version of STP must be better than coaxial.
You can get an optical to coxial converter box if your receiver has a coaxial digital input. If it doesn't, you will have to purchase an optical digital to analog (D to A) converter.
Coaxial cable, Optical fiber cable, Twisted Pair
telecommunications
They don't. All earth bound telescopes, optical or not, must deal with a number of issues. But what do you mean by "better"? A radio telescope is better suited to pick up radio waves than an optical telescope, but an optical telescope is better for visible light. They each serve their purpose better than the other.
Composite RCA will be better than a coaxial cable (RG6). The order of quality and maximum resolution from best to worst is: HDMI (including HDMI 1.4 3D) DVI Component Video S-Video Composite Coaxial cable
Optical zoom is way better than digital zoom as digital only expands the picture. Optical zoom actually zooms in.
If your speakers are self amplified and have a coaxial or optical digital input, you can.