Supernova Sonata by Alex Parker From April, 2003 until August, 2006, the
Canada-France-Hawaii Telescope watched four parts of the sky as often as possible. Armed with the largest digital camera in the known universe, CFHT monitored these four fields for a special type of
supernova (called Type Ia) which are created by the thermonuclear detonation of one or more
white-dwarf stars. Each supernova is assigned a note to be played:
The volume of the note is determined by the distance to the supernova, with more distant supernova being quieter and fainter.
The pitch of the note was determined by the supernova’s “stretch,” a property of how the supernova brightens and fades. Higher stretch values played higher notes. The pitches were drawn from a
Phrygian dominant scale.
The instrument the note was played on was determined by the properties of the galaxy which hosted each supernova. Supernovae hosted by massive galaxies are played with a stand-up bass, while supernovae hosted by less massive galaxies are played with a grand piano.
posted by ThenCameNow
on May 26, 2011 -
10 comments
Nova Science Now recently ran a segment on lightning (
quicktime, real, and windows video here). I figured that subject was over and done with shortly after Franklin flew a kite, but it turns out
we don't really know exactly what causes a bolt to start. The coolest part of the segment was
these researchers in Florida. Scientists know how hard it was to observe, monitor, and even find lightning bolts, so these guys built their own rig. High-powered model rockets attached to a couple thousand feet of wire, which is grounded to larger metal structures on the ground. The result? Shoot a rocket into a storm cloud and you get
instant lightning you can count on, measure, and control.
posted by mathowie
on Oct 22, 2005 -
30 comments
Canada, a 13+ link whistlestop glance at something from all the provinces and territories...
Alberta,
British Columbia,
Manitoba,
New Brunswick,
Newfoundland,
NWT,
Nova Scotia,
Nunavut,
Ontario,
PEI,
Quebec,
Saskatewan,
Yukon. Not to mention the talk about
Turks and
Caicos?
posted by edgeways
on Feb 15, 2005 -
28 comments
The elegant universe. A 3 hour PBS NOVA documentary on string theory [in 24 ~5-10 minute chunks of real player or quick time video]. Welcome to the 11th dimension.
posted by srboisvert
on Nov 14, 2003 -
18 comments
Why the towers fell. PBS is airing a
special episode of Nova about the science behind while the World Trade Center towers collapse. Nova's reputation for converting esoteric science & engineering into understandable explanations for the layman should make the show something to watch. 7PM EDT/PDT on most PBS stations. Set your Tivos.
posted by Argyle
on Apr 30, 2002 -
23 comments
Last week I was watching a Nova program on PBS called
'Cracking the Code of Life', which brought to my attention a disturbing fact about the process of mapping the Human Genome; private companies have applied for patents for gene sequences that they've mapped. Many of these patents were applied for before the government began the
Human Genome Project. Although the patent office has put these applications on hold until it figures out what to do with them, many drug companies an researchers
won't work with a gene sequence if there is a patent application outstanding. You can get involved yourself by
petitioning against patents on life.
posted by Sal Amander
on May 1, 2001 -
22 comments