An Internal combustion engine under load develops `pinging’ or `knocking’, where the fuel mixture starts exploding due to compression before the right time, causing rough running, stalling going...
Perspiration, or sweat, is our body’s way of cooling itself, whether that extra heat comes from hardworking muscles or from overstimulated nerves. Actually sweat does not “stink” like...
Antioxidants are compounds that inhibit chemical reactions with oxygen. The term `antioxidant’ refers to the activity possessed by numerous vitamins, minerals and other phytochemicals to serve as protection...
Tear gas, formally known as a lachrymatory agent or lachrymator stimulates the corneal nerves in the eyes to cause tears, pain, and even blindness. Common lachrymators include OC,...
Dry cleaning refers to cleansing of textiles in non-aqueous (non-water) solvents. Highly vapourising organic solvents are commonly used as dry cleaning fluids. Many dirt, soil or stains producing...
The primary reason why fruits ripen quicken when stored in a rice container is due to ethylene accumulation. Differences in the rate of ripening between fruits kept in...
Banana peels can turn brown or black when refrigerated. The cells on the peels of tropical fruits like banana get damaged when stored under cold conditions (Chilling Injury)....
In many fruits, especially the fleshy types, there are marked changes in their `respiration rate’ after they mature. In certain fruits, there is a considerable increase in the...
The production of X-ray images depends on the differences between the X-ray absorbing powers of various tissues. This difference in absorbing power is called contrast and is directly...
Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents. Zeolites are widely used in industry for water purification, as catalysts, for the preparation of advanced materials and in...
