Tag: osmosis

Osmotic Pressure

I must have been feeling “osmotic pressure” since I missed posting for the last month. We all know that that excuse is as lame as learning by osmosis from a book under your pillow. Now, let’s review osmotic pressure. Osmotic pressure is the minimum pressure required to stop solvent from flowing through a membrane into ….  Read More

Pressure Reduced Osmosis

Pressure Reduced Osmosis is being investigated as a green power source.   A prototype plant has been built in Norway.  We are still waiting for positive results.     The idea was introduced by RS Norman in 1974.  His concept is shown below.  Basically,  Water flows through the membrane  into the column of salt water. If the height ….  Read More

Scientific Method

A recent news article by Drs. Glazier and Ko from UCLA Health noted that a fecal transplant has been used to cure C diff.  With further reading, I learned that the process replaces diseased microbes with those from a healthy person.   This scientific method has been successful.  There are no known medicines for C diff.   ….  Read More

Welcome to Dr Osmosis

Hello, I am happy to be back.   And I would like to hear from you if you are reading this blog site.  Please leave a note in the comment section.     My blog site was attacked several months ago.   It is now more secure, and I will continue to review published findings about osmosis and osmosis ….  Read More

OSMOSIS

One must fully understand the history to appreciate today’s textbook thermodynamic theory of osmosis.

Endosmometer by Dutrochet

Nobel Lecture by Jacobus H. van’t Hoff

van’t Hoff Nobel prize for his work with osmotic pressure. The theory of Osmosis is not the theory of osmotic pressure.. See Atkins applied pressure to a vessel of water raises the vapor pressure..

Osmosis Experiment

What is difference between Osmosis and Diffusion?

 Osmosis is the movement of a solvent across a semi permeable membrane into a more dilute solution of the solvent.   The semi permeable membrane prevents the solute from passing through the membrane.    The original osmosis experiment used water and wine. Later experimenters found the same behavior using a sugar water solution instead of wine.    Various ….  Read More

Osmosis

After our papers on seed storage were rejected several times, we found that our design approach for seed storage warehouses was different from published works on the theory of osmosis.   We had several warehouses installed around the country.   All installations  are still working.   They are maintaining temperature and relative humidity at design conditions.    Either the ….  Read More

Water Purification

Water Purification Osmosis, the simple experiment of a column of wine capped at the bottom with a membrane from a pig’s bladder and immersed into a vessel of pure water has intrigued many for 200 years.  Although Priest Nollett expected that the column of wine would force flow downward through the membrane into the water, ….  Read More

Covid-19

Covid-19 pandemic has opened my eyes to the incredible complexity of the human body and to the many scientists and engineers that have improved our understanding and are working on developing solutions. We still have a long way to go