FRET interactions among four dyes on DNA have been recorded with a confocal microscope using photodiodes for single point detection.

The Kleine Scheidegg is quite a colony, with its railway station, shared by the Wengernalp and Jungfrau Railways, its commodious station buffet and two large hotels.

Call it claustrophobia, call it speluncaphobia, whether it’s fear of small spaces or fear of caves, “Deep Down Dark” is not a book for those with these phobias punctuated by vivid imaginations.

This is my native land.