Did you know that….
...It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth?
...In 5 billion years the Sun will run out of fuel and turn into a Red Giant?
...Light would take0 .13 seconds to travel around the Earth?
...Dogs can hear sound at a higher frequency than humans, allowing them to hear noises that we can’t?
...Blood is not always red? Some drugs can bind to haemoglobin and alter the chemistry of the iron atom, causing the blood to change colour. In fact, a sulphur-containing migraine treatment called sumatriptan can do this in some people, making their blood go green. Also, many animals have a different form of the haemoglobin protein with a different metal at the centre in place of the iron, which can also alter the colour. The horseshoe crab, for instance, has blue blood because it uses copper instead of iron. And the real hippies of the haemoglobin world are a kind of marine annelid worm. It actually has purple blood! It owes its colour to hemoglobin, a metalloprotein compound containing iron in the form of heme, to which oxygen binds.
...It takes 8 minutes 17 seconds for light to travel from the Sun’s surface to the Earth?
...In 5 billion years the Sun will run out of fuel and turn into a Red Giant?
...Light would take0 .13 seconds to travel around the Earth?
...Dogs can hear sound at a higher frequency than humans, allowing them to hear noises that we can’t?
...Blood is not always red? Some drugs can bind to haemoglobin and alter the chemistry of the iron atom, causing the blood to change colour. In fact, a sulphur-containing migraine treatment called sumatriptan can do this in some people, making their blood go green. Also, many animals have a different form of the haemoglobin protein with a different metal at the centre in place of the iron, which can also alter the colour. The horseshoe crab, for instance, has blue blood because it uses copper instead of iron. And the real hippies of the haemoglobin world are a kind of marine annelid worm. It actually has purple blood! It owes its colour to hemoglobin, a metalloprotein compound containing iron in the form of heme, to which oxygen binds.