Our Bodies’ Best Buddies: What is the human microbiome and we need to know about it

Our Bodies’ Best Buddies Elisabeth M Bik, Stanford University Note: this article was written for the September 2014 issue of the San Francisco Medical Society magazine.  Antony van Leeuwenhoek probably could not believe his eyes. It was 1683, and the Dutch scientist had put some tooth scrapings from his own mouth under the primitive microscope that he had […]

A Brief History of the Universe

The Science Geek

This post covers a brief history of the Universe from the Big Bang until the the present day. This, as I am sure you’ll agree, is a pretty big topic so I can only give a outline of some of the key events and when we believed they happened. This post is the second in my series about cosmology, which is the study of the origin and evolution of the Universe as a whole. To view my previous post click here.

Before I start talking about the history of the Universe I first need to give a brief overview of atoms, which are the building blocks of all matter – with a notable exception which I will explain below.

What are atoms ? 

An atom consists of a nucleus, which has a positive electric charge, surrounded by negatively charged electrons. Atoms are very small, typically around 0.0001 microns in diameter (a micron is a…

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Pareidolia

Science and rationality

Hi,
today I will write about pareidolia as commonly seen phenomena. People often see familiar objects in completely random things, like rocks.


Clearly there is face in the upper middle part of the picture on the left. There is definitely sign of both eyes, of nose and mouth, thats more than one needs to SNice.svg recognise face in something, consider the following one on the right. Do you see the black thick circle filled with yellow color, two ellipses and curved line extended in the ends? Yeah me too.

The point is that humans are great in recognizing (most often faces) in things that are actually not them. The first picture is photo of region Cydonia which is a area on Mars. It was taken in 1976 by Viking 1 and of course people thought that it was proof for extraterrestrial life! Well if you take enough photos of Mars there…

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Australia wants to ban unvaccinated children from preschool – should they?

No jab, no play. So says the Australian Prime Minister, Malcolm Turnbull, who has announced a proposal to bar unvaccinated children from attending preschools and daycare centres. Currently, 93 per cent of Australian children receive the standard childhood vaccinations, including those for measles, mumps and rubella, but the government wants to lift this to 95 per […]