*Lu's Corner is a new concept hosted by our Technical Specialist, Lu Lu. Lu has been a Technical Specialist with RheoSense for over 2 years. Through meticulous customer relationship development and continuous exploration of new applications, Lu has been able to provide a level of outstanding customer service and support.
What do we talk about when we talk about viscosity? A series stories of viscosity in life.
Story One - Cosmos and Cosmetics
Did you know that even a deadweight machine that is capable of applying 4,448,222 Newtons or 1 million pounds of force?
Science is the study of the world using collected knowledge, observation, and experimentation. Those in the sciences are generally known for being quite serious, dare I say, dull. However, that is not always the chase. Take for example Albert Einstein, unquestionably one of the most brilliant minds to ever inhabit the earth, but also a wit and sense of humor maybe equally as impressive. In this blog, I’d like to share some funny Einstein quotes as well as quotes from other brilliant minds. Enjoy!
One of the challenges of creating monoclonal antibody (mAb) injectable drugs is optimizing formulation. A good formulation has to have a high concentration of stable mAb’s for high efficacy. There are a variety of factors that can affect stability of these mAb’s, temperature, shear forces, pH, and even concentration. When proteins become, unstable and denature they can increase the viscosity of your formulation. Using a simple modified parallel plate demonstration, we can visualize why denatured proteins increase viscosity.
As marijuana use becomes more mainstream, the use of vaporizer pens or vape pens as a delivery system for THC is steadily increasing in popularity. Vape pens are not your classic bongs as seen in some old school Cheech and Chong movies, but are in fact a high-tech device; a high-tech device where precision and accuracy are critical to performance.
First of all, the question is-- can there be a coffee or liquid with zero viscosity coffee? We know that there is negative viscosity. Is having zero viscosity similar?
Viscosity is the resistance of a fluid to flow and it comes from the friction of molecules as they move against each other within the fluid. All fluids have at least some resistance to flow – except super fluids.
Creation of foods and beverages has been researched and been developed into its own science. Did you know that the viscosity of the foods that you eat also affects the taste? Just as texture, the thickness of a sauce, the ooey-gooey melted cheese, and even your saliva as you read this sentence all has a viscosity.
I tried my own combination for Mac & Cheese, what do you think?
Oobleck, a common name for the final product of mixing corn starch with water. Not only is it named after the mysterious materials falling from the sky in the Dr Seus's story, "Bartholomew & the Oobleck," this combination of materials is a great example of non-Newtonian fluid. (What is a non-Newtonian Fluid? What is Newtonian?)
That's right! You can 3D-print food. This presents a new and very interesting perspective in cooking with opportunities to modify the structure of the goods we eat. Icing, syrups, honey, nutella, dough... there are few limitations and some challenges to this process.
Every event we go to, we get asked for the viscosity of bunch of different common fluids. What is the viscosity of honey? Have you measured motor oil? Was it used oil? What about paints and inks? In this last post of the year, right before the holiday break, we ask you: What would you like us to measure?
You can always check our application library to see what fluids we have already tested: