Science & Mathematics Questions & Answers

The term enneagram is derived from two Greek words, ennea (nine) and grammos (something written or drawn). The Enneagram is a ninepointed figure inscribed in a circle. The meaning of the symbol itself, together with the personality types organized around the nine points, convey a system of knowledge about nine distinct but interrelated personality types, or nine ways of seeing …

Emissions trading (also known as cap and trade) is an administrative approach used to control pollution by providing economic incentives for achieving reductions in the emissions of pollutants. A central authority (usually a governmental body) sets a limit or cap on the amount of a pollutant that can be emitted. Companies or other groups are issued emission permits and are …

Electrospinning is a technique to stretch a liquid into the form of a yarn and is being looked upon as a surgeon’s new tool for sutures without scars. In this technique, an electrically charged polymer solution is fed through a small opening or needle and, because of its charge, the solution is sucked towards a grounded collecting plate. As the …

The rule of 72 is a rule of thumb (credited to Albert Einstein) that investors use to approximate the time it takes for money to double at a given rate of return. It states that if you divide the number 72 by any given rate of return, the answer you get is the time it takes for money to double …

Eco-bling refers to attempts to green an old building, by retrofitting it with solar panels and insulation to keep up with today’s zero-carbon standards. But most times these extra fittings fail to serve their purpose as the building is basically not eco-friendly. Effective green elements usually need to be introduced at the planning stage. In an eco-bling scenario, green efforts …

The most common sort of dust is the sort you wipe off tables and shelves, but this isn’t the only sort by any means. Dust is tiny particles of solid matter, which are so light that they can be blown about by air currents. Almost everything produces dust, even the sea. This sea dust takes the form of salt dust, …

“Dry Ice”, the trademark name for solid carbon dioxide, reaches its solid state when cooled liquid carbon dioxide is put under pressure. Scientists successfully produced the snowy, white solid, which produced temperatures dipping as low as 109 degrees Fahrenheit, and envisioned dozens of practical uses for “Dry Ice.” Unfortunately, they had yet to discover how to keep this solid from …

DRD4 gene is a gene in chromosome 11 of the human genome. It is also called the “Liberal gene” or “Pleasure seeking gene”, because polymorphisms, or altered length or sequence in the DRD4 gene, present in about 50% of the population, is associated with novelty seeking, liberal opinion forming, strong desire for sexual promiscuity, Attention Deficit Hyperactivity Disorder (ADHD), schizophrenia …

The Dragon’s Triangle is at the polar opposite of the Bermuda Triangle. This means that if you were to start out at the Bermuda Triangle and travel straight through the centre of the Earth, you would come out at the Dragon�s Triangle. This dangerous ocean triangle has reportedly claimed hundreds, if not thousands, of ships, airplanes, and submarines since it …

Dissociative Identity Disorder is defined as the occurrence of two or more personalities within the same individual, each of which, during some time in the person’s life, is able to take control. This is not often a mentally healthy thing when the personalities vie for control. It’s also known as multiple personality disorder (MPD). In 1994, the American Psychiatric Association’s …