It is easy to grow copper sulfate crystals, which are naturally bright blue. These simple step by step instructions yield crystals in a day.
Daily Archives: April 26, 2014
“What is the closest star?” This is often a trick question given to students. Most people start trying to think of exotic sounding names like Rigel, Sirius or Betelgeuse. The answer is “The Sun”. Our Sun is a star, specifically a Main Sequence G-type star commonly known as a yellow dwarf. […]
What Is the Closest Star?
A star has been discovered a mere 7.2 light-years from our Sun. The reason no one ever noticed it was because this star is a brown dwarf. A brown dwarf star is a mass of gas too small to sustain fusion reactions in their core. Their size ranges between approximately 2 […]