Archive for October, 2009

Becoming human

Becoming Human

Becoming Human is a brilliant website dedicated to the story of human evolution. The website contains an interactive documentary (which you can download onto your PC or MAC), a newly added timeline of human evolution, games, activities, lesson plans and much more. Pupils can use an interactive tool to “build bodies” or compare their chromosomes to those of apes. Information on new research in the area is also published, but in a readable and interesting manner. This site is a must for every biology teacher! Go to http://www.becominghuman.org/.

Add comment October 20th, 2009

Top 10 Tips for Cleaning Oily Skin

Top 10 Tips for Cleansing Oily Skin

 
woman with clay face mask
Medioimages/Getty Images
Coping with oily skin might seem like an uphill battle, but you can wage war with a clay face mask.

The field of dermatology will always be a busy one, given the simple fact that no two people seem to have exactly the same skin type. The cosmetics industry banks on this, offering skin care products for every skin type imaginable, from excessively dry to oily and everything in between.

Oily skin can strike anyone, regardless of age, ethnicity, gender or geographic location. A myriad of factors cause or exacerbate oily skin, including humidity, a poor face cleansing regimen and even exposure to cigarette smoke. Some people are genetically predisposed to oily skin, whereas many others experience a hike in oil production at certain stages in their life, such as during the teenage years. Additionally, women who are pregnant, going through menopause or taking birth control pills are especially susceptible to oily skin.

What are the effects of having oily skin? People who suffer from it might feel greasy a few hours after a shower. Women with oily complexions might find that their makeup wears off more easily, requiring them to reapply it multiple times per day. Oily skin is also a magnet for dirt and dust, which quickly accrue and clog pores. Clogged pores lead to acne, blackheads and other skin imperfections.

Think all hope is lost? HowStuffWorks has put together a list of tips for cleansing oily skin, debunking some well-known skin care myths along the way. And there is some good news for oily skin sufferers. Oil-slicked complexions tend to stand the test of time better than dry ones, resulting in a younger-looking appearance with fewer lines and wrinkles.

Add comment October 19th, 2009

Meteor Explodes Over Dutch Skies

Meteor Explodes Over Dutch Skies

A new picture has emerged of the fireball meteor which zipped across the skies of the Netherlands last Tuesday evening before exploding in to the North Sea. Many people in the Netherlands witnessed a large “fireball” meteor in the sky. Observations indicate that the orbit of the meteor came from south to north. Further research is being made about the precise path of the meteor. It is not sure what damage, if any, would have been caused if the meteor had hit land. Earth is constantly being bombarded by smaller debris from comets, asteroids, and even other rocky planets in the solar system. But a fireball of this size and brightness is likely seen anywhere in the world only every 20 to 25 years.
Nuala Kennedy

Add comment October 19th, 2009

‘Magnetic electricity’ discovered

Researchers have discovered a magnetic equivalent to electricity: single magnetic charges that can behave and interact like electrical ones. Visit the BBC website here to learn more.

Add comment October 19th, 2009

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This is a blog by the Science Department of St Leo's College Carlow. Visit our main website at www.stleoscarlow.ie

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