spectroheliograph
/ˌspɛktrə(ʊ)ˈhiːlɪəɡrɑːf
/noun
An instrument for taking photographs of the sun in light of one wavelength only.He invented the spectroheliograph in 1892, a device that allowed him to view the sun in individual wavelengths of light....
- Hale also gained prominence as an astronomer with his invention of the spectroheliograph and the discovery of magnetic fields in sunspots.
- The most important advantages of this form of spectroheliograph is the large field photographed.
- get moving
- get nicked
- get no change out of
- get off
- get off at Redfern
- get off on
- get off one's arse
- get off one's bike
- get off the dime
- get off the ground (or get something off the ground)
- get off the mark
- get on
- get one's act together
- get one's arse into gear
- get one's breath (back)
- get one's cards
- get one's claws into
- get one's creative juices flowing
- get one's end in
- get one's feet under the table
- get one's feet wet
- get one's fingers burned/burnt (or burn one's fingers)
- get one's hands dirty (or dirty one's hands)
- get one's head down
- get one's head round (or around)