Books tagged: sunspots

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Found 2 results

Amateur Radio Electronics V10 Home Study
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Series: Educational eBooks with accompanying software., Book 14 ยท Education eBooks, Apps and Software, Book 14. Price: $2.99 USD. Words: 50,010. Language: English. Published: July 3, 2012. Category: Nonfiction » Computers and Internet » Educational software
Amateur Radio Electronics V10 Home Study is now published as a portable, learning, reference and revision guide. Radio enthusiasts, students, trainers and hobbyists can have their own low-cost portable version as an eBook, plus an interactive App for a tablet or smartphone, along with the existing hugely popular PC version software.
What Are The Threats To Earth From Space?
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Price: $4.99 USD. Words: 8,850. Language: English. Published: November 13, 2013. Category: Nonfiction » Science and Nature » Space Science
We know that the Big Bang of 13 billion years ago saw the birth of the sun and many other planets. It just took an instant for the birth of the universe and the universe has been growing or expanding at the speed of light ever since. There are 100 billion galaxies within the universe and our galaxy is just one of them with over 100 billion stars.