|
In the
News:
Face on Back of Shroud - An examination with digital image processing
of the backside of the Shroud of Turin has unexpectedly revealed the image
of a man's face. The shroud, revered by many as the burial cloth of Christ,
has been the subject of controversy for hundreds of years. The image of
what appears to be a man crucified appears on the front. Scientists that
have done carbon dating tests on the shroud think that it does not date
from the time of Christ and is a medieval fake. Critics of the testing
suggest that the carbon dating may not be accurate. It is unknown what
this newest discovery, published last month, means to the controversy.
The back of the shroud was not visible because of a lining stitched onto
he object in 1534 to reinforce it after it was damaged in a fire. In was
only in 2002, when the lining was removed for restoration, that the back
became visible.
Drop
the Snail and Put Up Your Hands! - Federal agents seized several Giant
African Land Snails from Elementary School classrooms in Wisconsin. The
large snails, about the size of a man's fist, are illegal in the United
States. The creatures, should they get into the wild, rapidly reproduce
and destroy plants. Their mucous can also transmit meningitis. While the
snails could not have survived outside in the cold Wisconsin climate,
officials were concerned that they could be transported to a warmer location.
Three giant snails released in Florida in 1966 multiplied into a population
of 18,000 before a decade long eradication program removed them from the
environment.
Robots
to Repair Hubble? - NASA is considering putting together a mission
that would use robots to repair the aging Hubble Space Telescope. Engineers
estimate that the Hubble will fail in 2007 or 2008 unless its gyroscopes
and batteries are replaced. NASA canceled the last scheduled space shuttle
mission to repair the space telescope in the wake of safety concerns after
the Columbia disaster. Two of the leading possibilities to be involved
are the Johnson Space Center's Robonaut project and the University of
Maryland's Space Systems Laboratory's Ranger robot. A team at NASA is
examining several different programs and the most promising robot solutions
to the problem will studied over the summer. A decision will be made sometime
in the fall on whether to go forward with an actual mission.
Fifty
Mummies Found- Archeologists have discovered a cache of more than
50 mummies in a maze of underground shafts at Saqqara, 15 miles south
of Cairo. According to Zahl Hawass, head of Egypt's Supreme Antiquities
Council, the mummies are exceptionally well preserved. The mummies, dating
from 664 BC to 30 BC, are wrapped in linen and contained in stone or wooden
sarcophagi. Scientists hope that by examining these mummies they will
gain a better understanding of Egyptian civilization during that period.
Mayan
Monument Found - A team of scientists have unearthed a tablet that
may have clues to the final years of the ancient Maya Empire. The discovery
took place at Cancuen, the remains of a Mayan Palace, in northern Guatemala.
The stone panel was one of a set found in connection with the palace ball
court and depicts the local king, Taj, playing against visiting rulers.
Archeologists think the panel is the ancient equivalent of a "photo-op."
Project expert Federio Fahsen said that the tablet is "one of the
greater masterpieces of Maya art ever discovered in Guatemala." The
panel has been estimated to come from the end of the eighth century.
|
|
Ask the
Curator:
Atomic
Shadow - I've noticed in pictures of Hiroshima after the atomic
bomb was dropped "permanent shadows". In John Hersey's "Hiroshima", he
writes that "consequently the bomb had, in some places, left prints of
the shadows that had been cast by its light (such as "a permanent shadow
thrown on the roof of the Chamber of Commerce Building...by the structure's
rectangular tower", etc.)." Could you explain what about the atomic bomb's
flash embossed the shadows permanently? Thanks so much!
In the few seconds after an
atomic bomb goes off the area around it is bathed in intense heat rays
streaming out from the detonation point. Temperatures of objects hit by
the rays can climb to a thousand degrees or more. This causes wood to
char to black while old, dirty concrete can be "bleached" white.
If any object blocks the heat rays for those few seconds a portion of
the surface is spared and does not change color leaving a "shadow."
If you are about a mile from
ground zero at a nuclear blast there is no sound or shock wave for a few
seconds. Just blinding light and incredible heat which arrive at the speed
of light. Traveling at the speed of sound the shock wave hits after about
five seconds.
Sadly in the case of Hiroshima
some of the shadows left are in the shape of people. A man's shadow is
burned into the surface of a concrete footbridge while a woman's shadow
shows where she was sitting on the step of the local bank. In both cases
the people were killed having been vaporized by the heat and the subsequent
shock wave that arrived a few seconds later.
|
|
In the
Sky:
Two
Comets - Two comets should be visible this month, though you will
need binoculars or a small telescope to see them. On May 6th Comet NEAT
will be near the upper left of the bright star Sirius, low in the west-southwest
at the end of twilight. As the month goes on it will appear higher and
higher in the sky. By May 29th Comet LINEAR should become visible to people
in the Northern portion of the US. Look just above the west-southwestern
horizon after sunset. It will climb one degree higher in the sky every
night.
|
|
Observed:
Noah's Ark Expedition - A group of US and Turkish explorers
intend to climb Turkey's tallest mountain, Mount Ararat, in hope of finding
the remains of Noah's Ark. Their goal will be to examine a large object
near the top of the 17,820 foot peak that was exposed from ice and snow
during last summer's heat wave. The Bible places the landing place of
the ark on Mount Ararat, but scholars are divided on whether the mountain
named in the Bible is the same one carrying the modern name. Several other
expeditions have explored the area before, but none has been able to find
conclusive evidence for an ark.
|
|
On the
Tube:
Currently
we are only able to give accurate times and dates for these programs in
the United States. Check local listings in other locations.
NOVA: Magnetic Storm - Is the magnetic field protecting Earth from
deadly radiation about to reverse direction or even disappear? On PBS:
May 11 @ 8PM; ET.
Dive to Bermuda Triangle- There's a mystery out there with lots of
theories from aliens to time-warps. Hundreds of boats and planes have
disappeared leaving little or no trace at all. Most of these can be explained
easily enough, but a few still remain a genuine mystery. On the Discovery
Channel: May 02 @ 09:00 PM; May 03 @ 12:00 AM; May 04 @ 09:00 PM; May
05 @ 12:00 AM; May 09 @ 06:00 PM; ET.
Revelation:
The End of the World? - Revelation is the last book of the King James
version of the Christian Bible. Scholars shed light on this controversial,
dramatic, fantastic description of never before experienced events—including
the end of the world. On Discovery Channel: May 06 @ 09:00 PM; May 07
@ 12:00 AM; ET.
Ancient Evidence: Building the Impossible - Explore the wide context
of the ancient wonders for the modern world. Revisit the historical significance
of the pyramids, Babylon's hanging gardens, the temple of Artemis, the
statue of Zeus, the Mausoleum, the Colossus and the Pharos of Alexandria.
On Discovery Channel: Apr 22 @ 09:00 PM; Apr 23 @ 12:00 AM; ET.
Unsolved
History: Trojan Horse - An ancient story tells us that a mighty Greek
armada of a thousand ships sailed across the Mediterranean Sea to wage
war on Troy. Bent on vengeance for the abduction of the beautiful Helen
by the Trojan prince Paris, the Greeks lay siege to the great city. On
Discovery Channel: May 12 @ 08:00 PM; May 12 @ 11:00 PM; May 16 @ 05:00
PM ET/PT.
Ultimate
Blast: Eruption at Krakatau - In 1883, before its eruption, Krakatua
was believed by experts to be an extinct volcano. On May 20, Krakatua
let out a heavy rain of ash. The eruption lasted for weeks until Krakatua
exploded, leaving thousands dead and death and destruction in its wake.
On Discovery Channel: April 11 @ 7pm ET/PT; April 15 @ 8pm ET/PT.
|