Latest Ermanno F. Borra Stories
A team of internationally renowned astronomers and opticians may have found a way to make "unbelievably large" telescopes on the Moon. "It's so simple," says Ermanno F. Borra, physics professor at the Optics Laboratory of Laval University in Quebec, Canada. "Isaac Newton knew that any liquid, if put into a shallow container and set spinning, naturally assumes a parabolic shape"”the same shape needed by a telescope mirror to bring starlight to a focus. This could be the key to making a...
- A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
- A ghost, wraith, hobgoblin, elf, or spirit.