Wednesday marked the 11th anniversary of the first appearance of supposed time traveler John Titor back in the year 2000. While Titor's prophecy failures have diminished his semi-mythical status somewhat, it remains a great storyline that deals with a fascinating topic. So this short documentary that looks at both the Titor myth and the possibility of time travel, and features the likes of Michio Kaku, is well worth a watch:
Hoping the copyright notice dated to 1960 is an in-joke...
Cuttlefish, how do they work?
Two things stand out for me from that intriguing short video. Firstly, the thought that they disguise themselves by "consciously manipulat[ing] their skin". Secondly, that they mimic different environments, despite being color blind. Crazy.
Now this would have had me wondering had I seen it with my own eyes - a small cloud moves in strange ways, jumping from one position to another:
The explanation, provided by a meteorologist, has to do with the electric fields present within clouds (responsible for, most obviously, lightning):
The answer lies in this: ice crystals, especially long needles, tend to become aligned with the ambient electric field.
So what you are seeing is sunlight reflecting off ice crystal faces that are constantly being oriented by the developing electric field just above the [cumulonimbus] top. Then there is a discharge in the cloud, and the field collapses momentarily, and the crystals begin to realign again. Then this just keeps happening over and over.
Read more over at Bad Astronomy.
- Robert McLuhan on anecdotal evidence.
- David Talbott on "The Plasma Universe of Hannes Alfvén".
- Bernard d. Beitman on coincidence studies.
- Patrick Hugyhe writes in memory of William Corliss.
More content as well as that listed above, plus all eight previous issues remain available to download from the website, and there is an iPad app for viewing the PDF release as well.
Don't forget also: if you enjoy the mag, send a bit of love via the PayPal button to help ensure the future of this excellent free e-zine (or alternatively pick up a paper copy for $4.95). According to a recent email from the organisation, the SSE "is in serious financial trouble", and so the future of EdgeScience, and the Journal of Scientific Exploration, may well be in doubt. If you value researchers willing to go out on a limb and investigate the fringes of science, then please do support both EdgeScience with a donation, and the SSE with membership/subscription to JSE.
Witch, witch, burn him!!! Tel-Aviv University demonstrates quantum superconductors locked and levitating in a magnetic field.
I just want to know when I can have one to play with.
There's an interesting story over at Universe Today, asking if a recent comet hit caused an explosion on the Sun:
This amazing video from the SOHO mission (Solar and Heliospheric Observatory) shows a sun-diving comet hitting the solar surface on October 1, 2011 and unexpectedly a huge explosion occurs shortly after. Are the two events related? Probably not, but solar scientists don’t know for sure. The region where the CME originated was on the opposite side of the Sun from the comet hit, so that is very great distance. Scientists say there is no known mechanism for comets to trigger a CME.
Seeing this video I was immediately reminded of a blog entry that Jameske posted many years ago here at TDG, titled "Comet Vomit", in which he linked to a number of videos showing possible interaction between comets and the Sun:
According to Fred Whipple, from whom the dirty snowball comet theory originated, comets are composed of a nucleus usually around 5 to 10 Km in diameter, irregular in shape, and made of a loose agglomeration of ice, rock and hydrocarbons. The nucleus is surrounded by a diffuse atmosphere of material called a coma that can expand to up to 250000 km in diameter on close approach to the sun to form little more than vacuum, and they have highly elliptical orbits.
...Given the above it follows that there is absolutely no connection whatsoever between this comet and the sun, and this comet and the sun, and this comet and the sun, and this comet and the sun, and this comet and the sun, and this comet and the sun.
Finding patterns in coincidences, or is this some genuine, as yet unknown interaction between comets and our star? I look forward to seeing future scientific research into this fascinating little mystery...
Back in May I posted a story about the discovery of changes in the Earth's ionosphere leading up to the catastrophic Japanese earthquake (and subsequent tsunami) of March 2011. A research team led by Dimitar Ouzounov of the NASA Goddard Space Flight Centre found that...
...before the M9 earthquake, the total electron content of the ionosphere increased dramatically over the epicentre, reaching a maximum three days before the quake struck.
At the same time, satellite observations showed a big increase in infrared emissions from above the epicentre, which peaked in the hours before the quake. In other words, the atmosphere was heating up.
Last week an independent paper offered support for this 'warning signal' for massive earthquakes. According to the American Geophysical Union blog, geophysicist Kosuke Heki of Hokkaido University in Sapporo, Japan, has reported the same suggestive buildups of electrons in a new scientific paper:
“The claim that earthquakes are inherently unpredictable might not be true, at least for M9 [magnitude 9] class earthquakes,” Heki writes in an article accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union.
The study suggests that the total electron content, or TEC, in the ionosphere starts increasing as much as eight percent above background levels prior to massive earthquakes, with the biggest effect above the rupturing fault. The electron buildup before the Japan earthquake started 40 minutes before disaster struck.
...Days after the devastating magnitude 9.0 Tohoku-Oki earthquake struck Japan, Heki downloaded data from satellites that are part of the GPS Earth Observation Network. He was interested in oscillations of the TEC when acoustic waves echo from the epicenter into the ionosphere.
“I thought I’d see a very strong signal after this earthquake,” Heki says. “And in the course of working on that, I found something strange happened.” The TEC was higher before the expected oscillations occurred than it was after the oscillations, so he took another look at the raw data from the GPS satellites.
...But changes in total electron content aren’t rare, Heki says. Solar flares and other ionospheric disturbances can cause fluctuations. So he looked at TEC prior to other major earthquakes, including the 2010 Chile earthquake.
“I saw almost the same signature as the Tohoku earthquake,” Heki says. And although there were fewer GPS stations operational during the 2004 Sumatra quake, those showed a similar TEC anomaly. Smaller quakes, around magnitude 8.0 and below, don’t appear to have the same TEC increases.
You can download Heki's paper from his website (PDF download).
There appears to be some difference between the two papers regarding the maximum TEC in the ionosphere, with Heki's saying it started 40 minutes before the earthquake, while Ouzounov et al's paper put the timeframe in days. Neither paper references each other though, so perhaps Heki did not analyse the days in advance of the quake, but only the immediate hours surrounding it? In any case, fascinating insights into the invisible earth changes that take place when a major geological event occurs.
And as I mentioned in my previous post, could these changes be responsible for (oft-ridiculed) reports of 'earthquake lights'? Coincidentally, on the same day I came across the above news, I also stumbled across this podcast interview with David Brumbaugh, director of the Arizona Earthquake Information Center, discussing all the suggestions for a mechanism behind the anomalous phenomenon:
What do you think? Is there a relationship between the changes in the ionosphere and the mystery of earthquake lights?
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There's a long-held belief that animals sense earthquakes in advance, although the evidence is largely 'anecdotal' and thus many scientists remain skeptical. Well, here's some more anecdotes to add to the list: the Smithsonian Zoo in Washington, D.C. has released a post-earthquake update in which it describes some of the unusual animal behaviour in the lead up to yesterday's 5.9 quake:
The red ruffed lemurs sounded an alarm call about 15 minutes before the quake and then again just after it occurred.
...About five to ten seconds before the quake, many of the apes, including Kyle (an orangutan) and Kojo (a Western lowland gorilla), abandoned their food and climbed to the top of the tree-like structure in the exhibit.
About three seconds before the quake, Mandara (a gorilla) let out a shriek and collected her baby, Kibibi, and moved to the top of the tree structure as well.
Iris (an orangutan) began “belch vocalizing” — an unhappy/upset noise normally reserved for extreme irritation — before the quake and continued this vocalization following the quake.
...The Zoo has a flock of 64 flamingos. Just before the quake, the birds rushed about and grouped themselves together. They remained huddled during the quake.
Dr. Don Moore, the zoo's associate director for animal care sciences, theorized that the animals were picking up on sounds or vibrations below the level of human perception. "I think given that they're sensing it beforehand, they must be sensing the pre-rumbles that create some kind of vibration in the ground," Moore said, "or hearing something we can't hear."
However, one interesting facet of the report is the revelation that the zoo's pandas "did not appear to respond to the earthquake" - previous reports from earthquakes in China have suggested that the iconic bear species may have some 'pre-quake perception'. Another fascinating behavioural insight from the report: the ducks and beavers jumped in the water at the onset of the earthquake and stayed in there until well after it was finished.
Grailers might enjoy this upcoming series on The Science Channel, which looks at various fringe/heretical/abominable science topics: Dark Matters, hosted by Fringe star John Noble ('Dr Walter Bishop'):
Dark Matters premieres on August 31 - check your TV guide for times. According to Noble, the stories in the show "are as outlandish as a great sci-fi script or as disturbing as a classic horror tale — the only difference is that they’re all true... The series offers a glimpse into the dark side of science, as well as human nature."
Read more at Entertainment Weekly.