Sonication. Sonication is the act of applying sound energy to agitate particles in a sample, for various purposes. In the laboratory, it is usually applied using an ultrasonic bath or an ultrasonic probe, colloquially known as a sonicator.
Nostalgia Critic is the most popular video series created by Doug Walker, in which he plays the titular reviewer. The show is written by him and his brother Rob Walker. The series was initially launched on YouTube before moving to Blip TV in 2008.
Nostalgia is a way for us to tap into the past experiences that we have that are quite meaningful-to remind us that our lives are worthwhile, that we are people of value, that we have good relationships, that we are happy and that life has some sense of purpose or meaning..t matters, quite simply, because nostalgia makes us feel good. Heart sick. Once nostalgia was considered a sickness-the word derives from the Greek nostos (return) and algos (pain), suggesting suffering due to a desire to return to a place of origin.