Humans have used animals to make glue for thousands of years. The oldest glue discovered was a collagen-based adhesive that was 8,000 years old and used to hold utensils together.
One of the side effects of oil pulling is a loss of appetite. While some claim they lose their appetite because they donât want to make their mouths dirty after going through 15 minutes of swishing the oil, there are others who claim that the entire process of oil pulling seems to dull their appetite.
The Stark effect is the shifting and splitting of spectral lines of atoms and molecules due to presence of an external electric field. The amount of splitting or shifting is called the Stark splitting or Stark shift. In general, one distinguishes first- and second-order Stark effects. The first-order effect is linear in the applied electric field, while the second-order effect is quadratic in the field. The Stark effect is responsible for the pressure broadening of spectral lines by charged part