Gold is an incredibly fascinating subject. Not only has this shiny, yellow & soft metal been used since at least 4000 BC. but, gold has been used as currency, jewelry, is a sought-after investment option & is widely used in the production of electronic devices. Did you know, for example, that most of the earth’s gold (approximately 1.6 quadrillion tons) lies at its core as the precious metals’ high density caused it to sink there in the planet’s youth?
Can you image using the restroom in zero gravity? It would be quite difficult. Check out this infographic presented by EmergencyPlumber.co.uk to learn about how plumbing in space works.
Our solar system is located within the Milky Way – the galaxy that contains more than 200 billion stars. The Sun and 8 planets of the solar system were formed about 4.6 billion years ago. This infographic from Stedas dizajn shows whole solar system as well as planets’ physical characteristics and their position inside the system. Additionally it contains some interesting “Did you know” facts.