Answer by Gavin Harrington. Confidence votes 4.0K. A bitch is a female canine. The same word is often used in reference to something unpleasant or difficult to do. E.g- We had to deliver twenty large crates to the top floor, and the lift was out-that job was a bitch.
After reading this article, the physician should be able to: 1  Proper equipment setup and positioning for UGCVC. 2  Ultrasound criteria for possible difficult UGCVC. 3  Procedural steps involved in locating, accessing and cannulating the internal jugular vein with ultrasound guidance.
Total internal reflection can occur as long as the angles made by the rays are greater than the critical angle. In glass the critical angle is around 42Â° and today we use very narrow fibres of glass to transmit pulses of light.These are called optical fibres.They are used in telecommunications to transmit telephone conversations and data-including this web page to your computer!n glass the critical angle is around 42Â° and today we use very narrow fibres of glass to transmit pulses of light. These are called optical fibres. They are used in telecommunications to transmit telephone conversations and data-including this web page to your computer!