If cross-sections of a spherical surface and a parabolic surface were made by slicing each surface in half, these would be the shapes you would see:
I've been wanting to make a parabolic reflector for quite some time now.
Genderchangers: Remote Intimacy
Friday, November 12, 9:00-13:00 and Sunday, November 14, 9:00-17:00
Kasia Krakowiak & Ronen Eidelman: Radio all.FM
Radio Hacking, Space Liberating
Monday, November 15, 10:00-16:00 and Tuesday, November 16, 10:00-13:00
Frank Barknecht: Introduction to Pure DataWednesday and Thursday, November 17-18, 9:00-17:00