28 million year old Libyan desert glass: ‘It has extremely unusual properties. It is strangely pure for a natural glass. It melts at 1700 degrees rather than 1100 degrees for normal glass. It can be dropped into cold water when red hot without shattering.’ Can...
“The hills are shadows, and they flow From form to form, and nothing stands; They melt into mist, the solid lands, Like clouds they shape themselves and go.” Alfred Tennyson’s “In memoriam A.H.H.” 1849
A rainbow is only an arc because we stand on the ground, we would see the full circle if we flew up into the air. Rainbows are not singular but many – they are fact but only visible from the viewpoint of the viewer. The equation of the rainbow gives an...
Trees so tall it is a wonder how their strong slender limbs rigidly withstand the wind. That twisting gnarly bark acting like armadillo plating, pretending not to be tender underneath, so how is it they can produce tiny geometric flowers and something so exquisite as...
