Making Science More Better For You on 06/24/08

Looks like someone had some extra time on his hands.

For what it’s worth, we think this demonstrates that Neil Young was right—numbers really do add up to nothing.

Odysseus' return from Trojan War dated
Time pinpointed to the day based on references in epic poem


By Charles Q. Choi (MSNBC)

In the epic "Odyssey," one of the cornerstones of Western literature, the legendary Greek hero Odysseus returns to his queen Penelope after enduring 10 years of sailing the wine dark sea.

Now scientists have pinned down his return to April 16, 1178 B.C., close to noon local time, according to astronomical references in the epic poem that seem to pinpoint the total eclipse of the sun on the day that Odysseus supposedly returned on.

The "Odyssey" is a millennia-old epic said to be composed by the blind poet Homer. In modern times, the "Odyssey" is typically seen as fiction. Still, Homer's earlier epic, the "Iliad," was centered on the war against Troy, and scientists first uncovered physical evidence of Troy in the 19th century. This has long raised questions as to what other historical facts the epics might refer to.
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In the "Odyssey," after the decade-long Trojan War, King Odysseus of the island Ithaca contends with monsters and witches after he draws the wrath of the sea god Poseidon. After he finally returns home, Odysseus slays more than 100 unruly suitors all of whom wish to marry Penelope.

Blood red
The possible solar eclipse comes up in the 20th book of the "Odyssey," as the suitors begin their final lunch. At this point, the goddess of war Athena "confounds their minds," making the suitors laugh uncontrollably and see their food spattered with blood. The seer Theoclymenus then foresees the death of the suitors, ending by saying, "The sun has been obliterated from the sky, and an unlucky darkness invades the world."

The Greek historian Plutarch suggested the prophecy of Theoclymenus referred to a solar eclipse.

More recently, astronomers Carl Schoch and Paul Neugebauer computed in the 1920s that a total solar eclipse occurred over the Ionian islands — of which Ithaca is one — about noon on April 16, 1178 B.C., and would have coincided roughly a decade before the most often cited estimate for the sack of Troy — about 1190 B.C.


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Ancients liked to party
We may practice debauchery like we invented it, but we sure didn't. From the Egytian "festival of drunkenness" to the Roman hot-tub parties, ancient people knew how to party long before we were born.
Still, a great deal of skepticism remains over whether Theoclymenus refers to this or any eclipse. To shed light on the issue, researchers Marcelo Magnasco and Constantino Baikouzis at Rockefeller University in New York decided to analyze other passages in the "Odyssey" for astronomical references without assuming an eclipse.

The scientists first created a rough chronology of events depicted in the "Odyssey." First, 29 days before the supposed eclipse and the massacre of the suitors, three constellations are mentioned as Odysseus sets out from the island of Ogygia, where he has spent seven years as a captive of the beautiful nymph Calypso. Odysseus is told to watch the Pleiades and late-setting Boötes and keep the Great Bear to his left. Next, five days before the supposed eclipse, Odysseus arrives in Ithaca as the Star of Dawn — that is, Venus — rises ahead of the sun.

Finally, the night before the eclipse, there is a new moon.

Also, the messenger of the gods, Hermes, is sent west to Ogygia by the king of the gods Zeus to release Odysseus and then immediately returns back east roughly 34 days before the eclipse. The researchers conjecture this trip refers to an apparent turning point of the motion of the planet Mercury. (Mercury was the Roman name for Hermes.)

Backward planet
Mercury completes its orbit around the sun in just roughly 88 days, compared with the year it takes Earth to do so. This means that Mercury and Earth are somewhat like two cars moving along separate lanes of a racetrack at different speeds. The effect of these motions is that Mercury occasionally appears to go backward or retrograde in the sky from our point of view, Magnasco explained. This happens for roughly three weeks at a time, about three times a year.

The scientists then searched for potential dates that satisfied all these astronomical references close to the fall of Troy, which has over the centuries been estimated to have occurred between roughly 1250 to 1115 B.C. From these 135 years, they found just one date satisfied all the references — April 16, 1178 B.C., the same date as the proposed eclipse.

"That's just one day out of about 50,000 days," Magnasco told LiveScience. "If our findings are correct, it would be pretty spectacularly strange. How could Homer have known about this eclipse, about planetary positions that happened some 100 years before him? If this is all true, it would change the timetable of what we think they knew about astronomy then." Homer, if he really existed, is said to have composed the "Odyssey" sometime near the end of the ninth century B.C.




And so, the handkerchief, the weekly bath and the commodore 64 were born.

Britain's Last Neanderthals Were More Sophisticated Than We Thought

ScienceDaily (June 23, 2008) — An archaeological excavation at a site near Pulborough, West Sussex, has thrown remarkable new light on the life of northern Europe’s last Neanderthals. It provides a snapshot of a thriving, developing population – rather than communities on the verge of extinction.


“The tools we’ve found at the site are technologically advanced and potentially older than tools in Britain belonging to our own species, Homo sapiens,” says Dr Matthew Pope of Archaeology South East based at the UCL Institute of Archaeology. “It’s exciting to think that there’s a real possibility these were left by some of the last Neanderthal hunting groups to occupy northern Europe. The impression they give is of a population in complete command of both landscape and natural raw materials with a flourishing technology - not a people on the edge of extinction.”

The team, led by Dr Pope and funded by English Heritage, is undertaking the first modern, scientific investigation of the site since its original discovery in 1900. During the construction of a monumental house known as ‘Beedings’ some 2,300 perfectly preserved stone tools were removed from fissures encountered in the foundation trenches.

Only recently were the tools recognised for their importance. Research by Roger Jacobi of the Leverhulme-funded Ancient Human Occupation of Britain (AHOB) Project showed conclusively that the Beedings material has strong affinities with other tools from northern Europe dating back to between 35,000 and 42,000 years ago. The collection of tools from Beedings is more diverse and extensive than any other found in the region and therefore offers the best insight into the technologically advanced cultures which occupied Northern Europe before the accepted appearance of our own species.

“Dr Jacobi’s work showed the clear importance of the site,” says Dr Pope. “The exceptional collection of tools appears to represent the sophisticated hunting kit of Neanderthal populations which were only a few millennia from complete disappearance in the region. Unlike earlier, more typical Neanderthal tools these were made with long, straight blades - blades which were then turned into a variety of bone and hide processing implements, as well as lethal spear points.

“There were some questions about the validity of the earlier find, but our excavations have proved beyond doubt that the material discovered here was genuine and originated from fissures within the local sandstone. We also discovered older, more typical Neanderthal tools, deeper in the fissure. Clearly, Neanderthal hunters were drawn to the hill over a long period time, presumably for excellent views of the game-herds grazing on the plains below the ridge.”

The excavations suggest the site may not be unique. Similar sites with comparable fissure systems are thought to exist across south east England. The project now aims to prospect more widely across the region for similar sites.

Barney Sloane, Head of Historic Environment Commissions at English Heritage, said: “Sites such as this are extremely rare and a relatively little considered archaeological resource. Their remains sit at a key watershed in the evolutionary history of northern Europe. The tools at Beedings could equally be the signature of pioneer populations of modern humans, or traces of the last Neanderthal hunting groups to occupy the region. This study offers a rare chance to answer some crucial questions about just how technologically advanced Neanderthals were, and how they compare with our own species.”

The project, which has been running with the assistance of the landowners since February 2008, has been directed by Dr Matthew Pope of UCL and Caroline Wells of Sussex Archaeological Society, working closely with specialists from the Boxgrove Project and the Worthing Archaeological Society.