Science and Technology

Science and Technology articles, as requested by a member.


What is obesity?

Obesity is a medical condition in which excess body fat has accumulated to the extent that it may have an adverse effect on a person's health, leading to reduced life expectancy and/or increased health problems.   In other words, it means to be dangerously overweight.

Obesity is a leading preventable cause of death worldwide, with increasing prevalence in adults and children, and authorities view it as one of the most serious public health problems of the 21st century.


What is an e-book?

E-books, also written as Ebook, EBook, eBook, or ebook, stands for electronic book.  According to the Oxford Dictionary of English, an e-book is "an electronic version of a printed book which can be read on a personal computer or hand-held device designed specifically for this purpose".

The London smog disaster

London, England ( 51°29'51.75"N, 0° 7'47.65"W) was the site of a dense smog caused by heavy coal combustion during the winter of 1952, which killed approximately 12,000 people.

The Large Hadron Collider (LHC) is the world's largest machine, and the highest-energy particle accelerator.   It works by colliding opposing particle beams of either protons or lead nuclei.  These experiments are expected  to address the most fundamental questions of physics, to increase our understanding of the deepest laws of nature, including the existence of the hypothesized Higgs boson particle, which is often referred to as "the God particle" in the media.


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Unfortunately smart-phones don't bestow some increased IQ upon the user.  Something I was profoundly disappointed in when I realised it.  In fact there is no industry standard to define what is and what isn't a smart-phone.  For some, it's a phone that runs complete operating system software providing a standardized interface and platform for application developers.  For others, a smart-phone is simply a phone with advanced features like e-mail, and access to the Internet.

Even the definition of what a smart-phone is has changed over time.  According to David Wood, EVP at Symbian Ltd., "Smart phones differ from ordinary mobile phones in two fundamental ways: how they are built and what they can do."