Abstract

Mysterious phenomena within the sun break through the surface with an intensity that rises and falls on an average 11-yr cycle. The surface goes from relative quiescence to extraordinary turbulence. And this brief report, reprinted by permission from the Science section of the 18 Dec. 1989 edition of The Washington Post, discusses the current sunspot cycle which may become the most violent ever.

© 1990 Optical Society of America

Solar particles bombard earth—and then some

Appl. Opt. 29(13) 1857-1857 (1990)

Superconductor advances revive optimism for commercial uses

William Booth
Appl. Opt. 29(8) 1057-1058 (1990)

Giant balloon to ply Antarctic skies

Malcolm W. Browne
Appl. Opt. 29(7) 894-895 (1990)

Cheaper road to solar power: it’s all done with mirrors

Matthew L. Wald
Appl. Opt. 29(4) 444-445 (1990)

Is there gold in them thar hills?

Malcolm W. Browne
Appl. Opt. 29(12) 1711-1711 (1990)