How a young man tried to sell a retired doctor of sciences a water filter for 90,000 rubles
Once, a young man rang at the door of my friend (doctor of physical and mathematical sciences, professor), who is now an ordinary pensioner.
About 17 years old, somewhere, pinkish ..
The young man sold unique water filtration systems in apartments. Either reverse osmosis, or a distiller ...
The target audience - gullible solvent pensioners.
Price - 90,000 wooden.
The young man's story began in a classic way: they were given introductory information, what awful water in the water supply, how it stains the reagents wonderfully, etc.
The professor listened carefully to everything about the wonderful filters and their ridiculous price of 90,000 rubles. He sighed and gasped a lot, I live gagged.
After the presentation, I asked the young man only three questions.
- Why are you claiming that if the filter removes all salts from the water, the water becomes pH neutral? It's distilled water (pH: 5.5-6.6), and this is an acidic environment.
- Why does the filter remove absolutely all salts from the water, if about 70% of them are very important for the body?
- Was water spectrophotometry and nitrate-nitrite chromatography performed?
I don’t know how long the professor still interrogated the boy, but according to his assurances, he barely took off his legs and more in this area with his miracle filters did not even appear