*Researchers at the Massachusetts Institute of Technology (MIT) have developed a new method for measuring the viscosity of liquids, which is a measure of their resistance to flow. The team found that some liquids can be much runnier than previously thought, with viscosities up to 100 times lower than water.*

Viscosity is an important property of liquids that affects their flow behavior. For example, honey is more viscous than water, so it flows more slowly. The viscosity of a liquid is determined by the interactions between its molecules. In general, liquids with stronger molecular interactions are more viscous.

The MIT team developed a new method for measuring viscosity that uses a tiny cantilever beam. The beam is made of a silicon nitride, which is a very stiff material. When the beam is immersed in a liquid, it experiences a force due to the viscosity of the liquid. The amount of force that the beam experiences is proportional to the viscosity of the liquid.

The team used their new method to measure the viscosity of a variety of liquids, including water, honey, and oil. They found that some liquids, such as water, have a viscosity that is very close to that of water. However, other liquids, such as honey and oil, have viscosities that are much higher than that of water.

The team also found that the viscosity of some liquids can change dramatically with temperature. For example, the viscosity of honey decreases by a factor of 10 when the temperature is increased from room temperature to 100 degrees Celsius.

The new method for measuring viscosity could have a number of important applications. For example, it could be used to develop new drugs and materials. It could also be used to improve the efficiency of industrial processes.

The study was published in the journal Nature Physics.