Interesting Facts about Girls !!

• The vagina is only as deep as your middle finger.
• The vagina keeps itself clean and healthy by constantly producing mucus which turns white when it’s
exposed to the air.Discharge also prevents the vagina from drying out. Discharge will begin to appear
some time before your first period begins.
• Females can ovulate before they have their period.
• Cramps and painful periods may be caused by low calcium and magnesium levels.
• The usual amount of blood lost during a period is between one and six tablespoons. (120 ml blood and
tissue)
• Menstrual fluid is mostly made up of water.
• A lot of girls’ hymen are broken through using a tampon or during active sports such as horse back
riding or cycling. Masturbation, too, can break the hymen. There is an opening in the hymen that lets
menstrual fluid flow out.
• The fallopian tubes are about 10 cm long. The egg travels from the ovary to the uterus along these
tubes.  
• Girls are born with about 300,000 eggs.
• Ovary is about the size of a walnut/olive. The uterus is about the size of a pear/clenched fist.
• The average woman has about 500 periods in her lifetime.
• If a tampon has absorbed as much as it can and has to be changed within 4 hours, try a tampon with a
higher absorbency. If a tampon still has lots of white patches showing when you take it out after about
four hours, try a tampon with lower absorbency. Change your tampon every 4-8 hours.
• PMS symptoms: breast tenderness, feeling swollen or bloated, change in appetite, headaches, acne or
skin rash, constipation or diarrhea, abdominal cramps, feeling sad/tired/irritable or clumsy.
• You get cramps when your uterus contracts (squeezes) slightly to help get rid of most of its lining.
• If you are taking the birth control pill these five drugs may interfere with its effectiveness:
antihistamines, alcohol, analgesics, antacids, antibiotics.
• A pregnancy test only works 2 weeks after a suspected conception.

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Mars on Earth! - Atacama (+VIDEO)

We all know that deserts are one of the driest places in the world but did you know that the Atacama desert in Chile is the driest. To understand what that really means let’s take as an example the Sahara desert (the worlds largest hot desert) and note that it receives a meager 2mm of rain each year.

Now if you think that’s nothing then just imagine how dry the Atacama is when it receives just 0.1mm per year. In fact some parts of the desert have not seen rainfall for over 400 years making it in most estimations the driest place on the planet earth.

Looks Like Mars
Located west of the Andes and sprawling across a stretch of almost 600 miles a small region of the Atacama is so unlike anything else on the planet that it’s been compared to Mars. In fact due to it’s strange appearance not only have movies been filmed there e.g. Space Odyssey but NASA have continued to use it as their testing grounds for equipment, projects and instruments when preparing for Mars space missions.

Do People Live There ?
For an extremely harsh environment you’d be surprised if anything could survive there, however there are small communities located near the various natural oases that exist within the desert. In fact some of these settlements have been populated for thousands of years going back as far as the earliest of ancient civilisations.

Sodium Nitrate
As well as being extremely rich in copper it also carries the largest natural supply of sodium nitrate. This was mined heavily in the early 20th century for use in fertilizers and gun powder. However after the discovery of the Haber process (early-mid 20th century) sodium nitrate could now be synthetically produced and most of these mines were closed.

According to estimates the desert is still littered with up to 170 of these old mining towns which lie completely abandoned like ghost towns.

Astronomy
The Atacama is also one of the best places in the world for astronomy. Thanks to its location (i.e. high altitude), dry weather (i.e. very little cloud cover) and non existant light pollution it’s home to two of the worlds top observatories. Namely the La Silla and Paranal observatories owned and operated by the European Southern Observatory.

In addition to these on the 3rd October 2011 it also officially became home to the most expensive ground telescope in the world, otherwise known as ALMA. The telescope consists of an array of 66 radio telescopes all using radio waves to peer deep into space helping us learn more about star formations especially during the early years of the universe.


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