Scientists can track these earlier natural changes in climate by examining ice cores drilled from Greenland and Antarctica, which provide evidence about conditions as far back as 800,000 years ago. The ice cores have shown that rising CO2 levels and rising temperatures are closely linked. What is the natural reasonRead More →

Some of the more commonly-available brands of grenadine, however, contain no pomegranate juice whatsoever, in favor of high fructose corn syrup and food dye. … As to whether grenadine is bad for you — well, it is a sugar syrup, not a health tonic. Why is grenadine so expensive? Rose’sRead More →

Attractive new rubies reportedly from northern Mozambique have begun to appear on the Thai gem market. The stones resemble rubies from Winza, Tanzania, but this study shows they can be distinguished by microscopic examination. Download PDF to view. What is Burmese ruby? Burmese ruby (or Old Burma ruby) is theRead More →

The definition of a harbor is a place providing shelter or safety or a protected area in the water where boats anchor. An example of harbor is a home for abused women. An example of harbor is a port where someone can tie up their boat. A sheltered part ofRead More →

Alteplase is an enzyme that occurs naturally in man and causes blood clots to dissolve. It is a man-made protein manufactured by recombinant DNA technology. The naturally occurring protein, known as tissue plasminogen activator (TPA), is made by ovarian cells from the Chinese hamster. Why can’t people receive thrombolytic? ThrombolyticsRead More →

These odorants are added as a safety precaution, as natural gas in its pure state is completely odourless. These chemicals add a characteristic “gas” smell that can be identified at concentrations of just 1%, reducing the risk that leaks will go undetected and gas will accumulate to hazardous levels. WhatRead More →

Liposomes, microscopic and spherical manmade cells, are made from one or more lipid bilayers consisting of single amphiphilic lipids or different lipids either charged or neutral. How liposomes are formed? Liposomes are formed when phospholipids such as lecithin are present in water and form one bilayer or a series ofRead More →