ChevScience

A weblog of popular science

How Folding Paper Can Get You to the Moon

Posted by ChevScience on June 1, 2012

Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper to see how many times you can fold it!

Posted in Astrophysics | Leave a Comment »

Billions of Earth-Like Planets May Exist in Our Galaxy

Posted by ChevScience on June 1, 2012

About 40 percent of red dwarf stars may have Earth-sized planets orbiting them that have the right conditions for life, that is, their surface water would be liquid.

Red dwarfs – which are smaller and cooler than our sun – are extremely common, making up 80 percent of stars in the galaxy. Considering that about 80%, or 160 billion, of the Milky Way’s stars are red dwarfs, there are likely more than 65 billion stars in our galaxy with a habitable super-Earth and about 100 of them lie within 10 parsecs, or 32.6 light-years, of Earth. Learn more here or here.

Posted in Main Sequence, Pre-main sequence | Leave a Comment »

NASA readies ‘black hole hunter’ mission

Posted by ChevScience on June 1, 2012

The US space agency says it is preparing to launch next month a sophisticated orbiting telescope that will use high energy X-ray vision to hunt for black holes in the universe.

Read more: http://www.smh.com.au/technology/sci-tech/nasa-readies-black-hole-hunter-mission-20120531-1zkfy.html#ixzz1wWfIqSvn

Posted in Astrophysics | Leave a Comment »

Colliding galaxies

Posted by ChevScience on June 1, 2012

DON’T worry about when the world as we know it might end. NASA has calculated that our entire Milky Way galaxy will crash into a neighbouring galaxy with a head-on hit – in four billion years.

Milky Way v Andromedahttp://video.news.com.au/embed/2241174090/Milky-Way-collision?player=narrow

 

Posted in Astrophysics | Leave a Comment »

Assessment Task 3

Posted by ChevScience on May 17, 2012

Your astrophysics task is ready to go. Have a look in Assessments

 

Mr.N

Posted in Astrophysics | Leave a Comment »

Picture shows how little water there is on Earth

Posted by ChevScience on May 15, 2012

Here is a picture that gives you a perfect idea of how much water there is on Earth compared to the solid materials that form its main body. It’s truly staggering.

This picture shows the size of a sphere that would contain all of Earth’s water in comparison to the size of the Earth. The blue sphere sitting on the United States has a diameter of about 1,385 kilometres, with a volume of about 1,386,000,000 cubic kilometres. The sphere includes all the water in the oceans, seas, ice caps, lakes and rivers as well as groundwater, atmospheric water, and even the water in you, your dog, and your tomato plant. Learn more here.

Posted in Environment, Main Sequence | Leave a Comment »

Evolution in a song

Posted by ChevScience on May 13, 2012

Beautiful

Posted in Astrophysics | Leave a Comment »

Pile-Up of Particles Could Obscure Higgs Finding at Large Hadron Collider

Posted by ChevScience on May 11, 2012

Physicists are rewriting computer code so that detectors can cope with and triage data from the hundreds of millions of collisions that occur every second

Read on

Check here for some basics. THIS STUFF IS IMPORTANT

Posted in Astrophysics | Leave a Comment »

Earth-like planets around Alpha Centauri?

Posted by ChevScience on May 11, 2012

Alpha Centauri, the closest star system to our Solar System, should harbour detectable Earth-like planets, according to a new study by astronomers at the University of Santa Cruz

I love this type of research. I look up at the Southern Cross often, at this star! it just could have some one looking back at me.For Real!

Read on

Posted in Main Sequence, Planetart nebulae/white dwarfs | Leave a Comment »

Why the solar system can exist

Posted by ChevScience on May 11, 2012

If gravity is so attractive, why doesn’t the earth just crash into the sun? Or the moon into the earth?

Posted in Astrophysics | Leave a Comment »