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Korean Researchers Develop Seven-foot Robotic Crab for Deep-Sea Exploration

Korean Researchers Develop Seven-foot Robotic Crab for Deep-Sea Exploration

Unlike ROVs and AUVs, the Crabster is designed to be lowered by crane to around 200 meters (650 feet) below the surface, where it will walk along the sea floor on six legs powered by 30 joints.

Moving on legs will hopefully prove more stable, and won’t stir up as much debris as propellers. And like a crab or a lobster, the robot’s two front legs are equipped with manipulators that can grasp objects that can be stored in a frontal compartment.

The researchers also designed the robot’s shell to deflect strong currents by adjusting its overall posture.

It takes four people to operate the Crabster. The pilot controls the robot’s walking and posture while a co-pilot works its manipulators, cameras, and lights. A navigator plans its movement and keeps track of its position, while a sonar engineer monitors the scanning sonar and other sensors. This is all accomplished from the remote control station…

The Crabster can remain on the sea floor for days at a time if necessary, as it is tethered to an external power source. It’s equipped with a high resolution scanning sonar, acoustic camera, acoustic doppler current profiler (ADCP), and several optical cameras. The goal is to explore submerged ships in currents moving at 1.5 meters per second, which are strong enough to rip the oxygen mask off of a scuba diver’s face.

New App Anonymizes Writing by Identifying, Then Stripping Style Cues

New App Anonymizes Writing by Identifying, Then Stripping Style Cues

A new app from researchers at Drexel University can spot what makes an author’s writing unique and replace it with a more generic style.

Called Anonymouth, the program works by looking for “stylistic markers" like commonly used words, punctuation, and sentence rhythm. The idea behind it is that as Internet privacy becomes more of an issue and technology allows even greater levels of tracking individuals, people will want a way to interact with others online and still retain some level of anonymity…

In a study looking at several hundred anonymous Internet forum users, the app was able to identify 80 percent of the users by simply looking at their posts. In a presentation the researchers gave on their work, they said that the tool even works when looking at writing from completely different contexts: “Function words are very specific to the writer. Even if you are writing a thesis, you’ll probably use the same function words in chat messages.”

Adaptive Morphology: New Multi-Modal Drone Can Use its Wings to Walk

Adaptive Morphology: New Multi-Modal Drone Can Use its Wings to Walk

Most animals are multi-modal: they can walk and swim, or walk and fly… there are clear advantages to being able to do move multi-modally, with capability and efficiency coming out near the top of the list.

The disadvantage is that generally, you need a substantial amount of extra hardware for each mode of locomotion… EPFL has managed to create a UAV that can use its wings to walk.

This robot takes advantage of “adaptive morphology," where you’ve got one structure (the wings, in this case) that can be used for multiple locomotion modes.

In a search and rescue situation, you might use a capability like this to fly around and get a good overview of an area, and then land and crawl around under some bushes if you spot something interesting.

[S]mall UAVs tend to land badly [so] being able to move around (even just a little bit) vastly improves the potential for returning to the air successfully.

It’s probably not possible to design wings that have much structural commonality with particularly efficient legs, but that’s not a problem when you can just invent some wings that change their shape, which looks to be where this research is going next.

Once Extinct in the Wild, Galapagos Giant Tortoises Return to Pinzon Island

Once Extinct in the Wild, Galapagos Giant Tortoises Return to Pinzon Island

by John R. Platt

Now here’s a great conservation success story: After more than 100 years, Galápagos giant tortoise hatchlings finally have a chance to thrive and survive on their native Pinzón Island, after conservationists cleared it of the invasive rats that nearly wiped out the animals.

Like most Galápagos giant tortoises—including the conservation icon Lonesome George, who died last year—the tortuga subspecies that once lived on Pinzón Island were nearly wiped out by the arrival of pirates, fishermen and invasive species in the seventeenth and eighteenth centuries. In this case, the greatest threat to the Pinzón Island tortoise subspecies (Chelonoidis nigra duncanensis) came in the form of voracious black rats (Rattus rattus) and Norway rats (R.  norvegicus), which ate both the tortoises’ eggs and their defenseless hatchlings.

Older tortoises can defend themselves against rats but so many young animals were killed by rodents that the subspecies could not replenish its population as older animals died off. By the beginning of the twentieth century, it appeared that no young tortoises on the island were surviving until adulthood…

Britain’s barn owls under threat due to extreme weather

Britain’s barn owls under threat due to extreme weather

Cold, wet springs have led to worst breeding season in three decades, which has devastated the species’ UK population

by Caroline Davies

he barn owl, an icon of the countryside and one of Britain’s most popular farmland birds, has suffered a catastrophic fall in numbers after a series of cold and wet springs and is now in “very serious trouble", conservationists have warned.

The Barn Owl Trust said a run of extreme weather events since 2009 had devastated the species’ UK population and led to the worst barn owl breeding season for more than 30 years. Monitoring of sites has revealed where birds have managed to breed, and the average number of owlets at each site is just two, compared with the four or five needed for population recovery.

The British Trust for Ornithology (BTO) recorded a 280% increase in reports of dead birds in March at the start of the breeding season. Many had starved.

David Ramsden, senior conservation officer at the Barn Owl Trust, said: “There has never been mortality on this scale before." Numbers were already low because of the bitterly cold winters and extremely wet summers the UK has experienced since 2009…

New Wearable Medical Device Treats Chronic Wounds With Ultrasound

New Wearable Medical Device Treats Chronic Wounds With Ultrasound

In a small clinical study, researchers administered a new method for treating chronic wounds using a novel ultrasound applicator that can be worn like a Band-Aid.

The applicator delivers low-frequency, low-intensity ultrasound directly to wounds, and was found to significantly accelerate healing in five patients with venous ulcers…

“Most ultrasound transducers require a large apparatus and need to be plugged into the wall. We wanted this to be fully wearable as well as portable, so we needed to make it battery-powered. To achieve that, we had had to design a transducer that could produce medically relevant energy levels using minimum voltage,” says Lewin.

Their resulting ultrasound patch weighs just 100 grams — the equivalent of a king sized candy bar — and is connected to two lithium ion batteries which are fully rechargeable. Lewin says the design gives patients the option of using the transducer in a home environment, while still wearing their compression socks. It also prevents the need for a doctor’s visit, which can be a difficult task for patients with chronic wounds.

butterfly species

Silver-spotted Skipper (Hesperia comma)

… is a butterfly of the ‘skipper’ family  Hesperiidae, found through out northern North America and Eurasia. It is known as the Common Branded Skipper in North America, where the butterfly Epargyreus clarus, a spread-winged skipper, also has the common name of “Silver-spotted Skipper".

Females lay single eggs during August and September on the leaf blades ofSheep’s Fescue, Festuca ovina, the only foodplant, and occasionally on nearby plants. Like other skippers the larvae construct small tent-like structures from leaf blades and silk from which to feed. They enter the pupal stage after 14 to 15 weeks at the base of the foodplant. Pupation takes 10 to 14 days, and as with most butterflies the males emerge first…

Silver-spotted Skippers (Hesperia comma) on thistle with diurnal burnett moth, Val d’Aosta, Italy

Florida declares two butterfly species extinct as pollinator crisis worsens

by Alexander Holmgren

Conservationist’s faced a crushing blow last month as two butterfly species native to Florida were declared extinct. 

“Occasionally, these types of butterflies disappear for long periods of time but are rediscovered in another location," said Larry Williams, U.S. Fish and Wildlife state supervisor for ecological services. We think it’s apparent now these two species are extinct." 

Neither species has been seen in any environment for at least nine years, the latter of the two not being seen since 2000. This calamity is only made worse by the fact that so much could have been done in order to save these creatures. The first species, the Zestos skipper butterfly (Epargyreus zestos oberon), had strong bodies with large black eyes and large wings that were adorned with spots that looked like eyes. While the Zestos skipper was visibly declining in its environment, the subspecies was denied access to the U.S.’s Endangered Species Act (ESA) because of the confusion between it and other skipper species in the Bahamas. In the end, what was thought to be a bountiful reserve in the Bahamas proved to be a completely different species. By the time the mistake was realized it proved too late. 

The Rockland grass skipper butterfly (Hesperia meskei pinocayo), an amber golden insect with club like antenna and black eyes, was similarly thought to be making a comeback as the species that had not been seen since the 80’s was spotted back in 2000. But is now believed extinct…

Scientists reveal secret of how 'monkey fish' were made

ca. 1860, [carte de visite portrait of a “Monkey Fish of Japan", one of many of such specimens created during the 18th and 19th centuries. This particular “merman" was later purchased by P.T. Barnum and shown at the Chinese and Japanese Warehouse on Regent Street in London], Gush and Fergusson

An investigation by St George's University and Horniman Museum in London has finally revealed how mermen and mermaid relics (sometimes referred to as monkey fish) may have been made.

They are thought to have been made by fishermen in Japan and East Asia and were bought by sailors as good luck charms or by circus entertainers to display as curiosities.

Early 20th Century scientists were baffled by the specimens, with some claiming them to be mummified mermaids.

They were later believed to be made from the head and body of a monkey sewn on to the tail of a fish, giving rise to the term "monkey fish".

It was not until March 2011 that an X-ray of the Horniman merman (affectionately known as Herman), revealed that the monkey half was in fact made from papier mache.

Using a combination of CT scans, microscopy, X-radiography and 3D printing, the research team have finally managed to piece together exactly how Herman was made.

Dr James Moffatt, a physiology lecturer at St George's University in London, explains the process.

Why Not Hand Over a ‘Shelter’ to Hermit Crabs? (2010)

Why Not Hand Over a ‘Shelter’ to Hermit Crabs? (2010)

Artist’s statement: 

"In this piece I gave hermit crabs shelters that I had made for them, and if they liked my shelters, I got them to use them as their shell. I overheard that the land of the former French Embassy in Japan had been French until October 2009; that it was to become Japanese for the following fifty years, and then be returned to France. This concept made me think of hermit crabs, which change their shells.

The same piece of land is peacefully transferred from one country to the other. These kinds of things take place without our being aware of it. On the other hand, similar events are not unrelated to us as individuals. For example acquiring nationality, moving, and migration. The hermit crabs wearing the shelters I built for them, which imitate the architecture of various countries, appeared to be crossing various national borders. Though the body of the hermit crab is the same, according to the shell it is wearing, its appearance changes completely. It’s as if they were asking, ‘Who are you?’"

Word of the Day | verity

verity •\ˈver-ə-tē\• noun

1. conformity to reality or actuality
2. an enduring or necessary ethical or religious or aesthetic truth

The word verity has appeared in 12 New York Times articles in the past year, including on Aug. 19 in the book review “Here if You Need Me” by William Giraldi:

There are two species of novelist: one writes as if the world is a known locale that requires dutiful reporting, the other as if the world has yet to be made. The former enjoys the complacency of the au courant and the lassitude of at-hand language, while the latter believes with Thoreau that ”this world is but canvas to our imaginations,” that the only worthy assertion of imagination occurs by way of linguistic originality wed to intellect and emotional verity. You close ”Don Quixote” and ”Tristram Shandy,” ”Middlemarch” and ”Augie March,” and the cosmos takes on a coruscated import it rather lacked before, an ”eternal and irrepressible freshness,” in Pound’s apt phrase. His definition of literature is among the best we have: ”Language charged with meaning.” How charged was the last novel you read?

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The Word of the Day and its definitions have been provided byVocabulary.com and the Visual Thesaurus.

Learn more about the word “verity” and see usage examples across a range of subjects on the Vocabulary dictionary.

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6 Q’s About the News | On the Cover of Rolling Stone

In “CVS and Walgreens Ban an Issue of Rolling Stone,” Noam Cohen writes about criticism that the latest cover of the magazine glamorizes the surviving suspect in the Boston Marathon bombings.

WHO is on the latest cover of Rolling Stone magazine?

WHY did the chain stores CVS and Walgreens say this week that they would not sell it?

WHAT has being on the cover of Rolling Stone long been a sign of?

WHEN did the Boston bombings occur?

WHERE did Boston Mayor Thomas M. Menino send a letter to object to the cover?

WHAT is the Rolling Stone article about?

HOW did the magazine defend its cover?

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For Higher-Order Thinking:

HOW do you feel about this cover? Do you agree with Rolling Stone that it helps young people understand some of the “complexities” of who this young man is, or do you agree with those who say it “glorifies” him? WHAT do you think Rolling Stone could have put on its cover instead? WHAT do you think about what this Massachusetts State Police sergeant did in response?

Jacquelyn Martin - Tribe of Ghosts (2012)

Jacquelyn Martin - Tribe of Ghosts (2012)

About Martin’s series:

"Photographers look for beauty in unexpected places. And in parts of Tanzania — a society that gravely mistreats albinos — photojournalist Jacquelyn Martin set out to show how beautiful she thinks they are.

Tanzanians with albinism endure a particularly cruel fate. Not only do they suffer from sun sensitivity and vision problems, but they are also hunted by witch doctors who believe their body parts can be used for magic.

Since 2006, more than 71 albinos have been killed in Tanzania so their bodies could be made into potions."They go through daily prejudice and hardship," Martin says on the phone. “People around them don’t think of them as humans."

Tanzania — which is thought to be the birthplace of the genetic mutation — has one of the highest rates of albinism in the world. Albinos account for nearly 1 in every 1,400 people, compared to about 1 in 20,000 worldwide. And because of social discrimination, albinos tend to marry each other, thereby passing their genes to their children.

Martin worked with a translator to interview her subjects and take their portraits. In some cases, it was the first time they had ever had their photo taken.

"In society, they are reviled, so they really responded to being treated with dignity and being photographed in a respectful, humanitarian manner," she says."I really think there is something special in this collection of portraits where their inner beauty shines through," she adds. “We would talk about their experiences … and they would laugh and love that they were in the pictures."The Kabanga center and others like it protect people with albinism but also isolate them. Martin plans to give prints to every person she photographed."Because they are not treated like humans, because they are not treated with respect, I hope they have a little something that helps them reflect on the beauty in themselves — to help them going forward."

The big bang theory science jocks

there is a farmer and he has chickens but they don't lay any eggs so he called a physicist to help , the physicist then does some calculations and he said i have a solution but it only works with spherical chickens in a vacuum  

The big bang theory science jocks  

The Astronaut Space Mirror Memorial at the Kennedy Space Cente

/The Astronaut Space Mirror Memorial at the Kennedy Space Center.


The three greatest disasters to hit NASA’s space exploration program all happened over the course of six days between January 27 and February 1, on three different years.

On January 27, 1967, a launch pad fire took the lives of Gus Grissom, Ed White, and Roger Chaffee. The three astronauts were in the spacecraft during a test firing of the rockets on the launch pad when a flash fire enveloped the command module. Despite the tragedy, the Apollo program went on to put the first man on the moon on July 20, 1969.

On January 28, 1986, the space shuttle Challenger broke up 73 seconds after launch, killing all seven astronauts on board: Michael Smith, Dick Scobee, Ronald McNair, Ellison Onizuka, Christa McAuliffe, Gregory Jarvis, and Judith Resnik. Due to low temperatures in Florida the morning of the accident, the O-ring seals in the solid rocket boosters became frozen and lost their flexibility. High temperature gas was able to escape the seals, resulting in the destruction of the vehicle.

The next spaceflight tragedy occurred on February 1, 2003, when the space shuttle Columbia disintegrated on re-entry. Seven crew members, Rick Husband, William McCool, Michael Anderson, Ilan Ramon, Kalpana Chawla, David Brown, and Laurel Clark, lost their lives when the shuttle’s thermal protection system failed over Texas twenty minutes before its scheduled landing in Florida.

Men Walk On Moon

Two Americans, astronauts of Apollo 11, steered their fragile four-legged lunar module safely and smoothly to the historic landing yesterday at 4:17:40 P.M., Eastern daylight time.

Neil A. Armstrong, the 38-year-old civilian commander, radioed to earth and the mission control room here:

"Houston, Tranquility Base here. The Eagle has landed."

The first men to reach the moon--Mr. Armstrong and his co-pilot, Col. Edwin E. Aldrin, Jr. of the Air Force--brought their ship to rest on a level, rock-strewn plain near the southwestern shore of the arid Sea of Tranquility.

About six and a half hours later, Mr. Armstrong opened the landing craft's hatch, stepped slowly down the ladder and declared as he planted the first human footprint on the lunar crust:

"That's one small step for man, one giant leap for mankind."

His first step on the moon came at 10:56:20 P.M., as a television camera outside the craft transmitted his every move to an awed and excited audience of hundreds of millions of people on earth.

Tentative Steps Test Soil

Mr. Armstrong's initial steps were tentative tests of the lunar soil's firmness and of his ability to move about easily in his bulky white spacesuit and backpacks and under the influence of lunar gravity, which is one-sixth that of the earth.

"The surface is fine and powdery," the astronaut reported. "I can pick it up loosely with my toe. It does adhere in fine layers like powdered charcoal to the sole and sides of my boots. I only go in a small fraction of an inch, maybe an eighth of an inch. But I can see the footprints of my boots in the treads in the fine sandy particles.

After 19 minutes of Mr. Armstrong's testing, Colonel Aldrin joined him outside the craft.

The two men got busy setting up another television camera out from the lunar module, planting an American flag into the ground, scooping up soil and rock samples, deploying scientific experiments and hopping and loping about in a demonstration of their lunar agility.

They found walking and working on the moon less taxing than had been forecast. Mr. Armstrong once reported he was "very comfortable."

And people back on earth found the black-and-white television pictures of the bug- shaped lunar module and the men tramping about it so sharp and clear as to seem unreal, more like a toy and toy-like figures than human beings on the most daring and far- reaching expedition thus far undertaken.

Nixon Telephones Congratulations

During one break in the astronauts' work, President Nixon congratulated them from the White House in what, he said, "certainly has to be the most historic telephone call ever made."

"Because of what you have done," the President told the astronauts, "the heavens have become a part of man's world. And as you talk to us from the Sea of Tranquility it required us to redouble our efforts to bring peace and tranquility to earth.

"For one priceless moment in the whole history of man all the people on this earth are truly one--one in their pride in what you have done and one in our prayers that you will return safely to earth."

Mr. Armstrong replied:

"Thank you Mr. President. It's a great honor and privilege for us to be here representing not only the United States but men of peace of all nations, men with interests and a curiosity and men with a vision for the future."

All the American Flags On the Moon Are Now White

All the American Flags On the Moon Are Now White

According to lunar scientist Paul Spudis:

For forty-odd years, the flags have been exposed to the full fury of the Moon's environment – alternating 14 days of searing sunlight and 100° C heat with 14 days of numbing-cold -150° C darkness. But even more damaging is the intense ultraviolet (UV) radiation from the pure unfiltered sunlight on the cloth (modal) from which the Apollo flags were made. Even on Earth, the colors of a cloth flag flown in bright sunlight for many years will eventually fade and need to be replaced. So it is likely that these symbols of American achievement have been rendered blank, bleached white by the UV radiation of unfiltered sunlight on the lunar surface. Some of them may even have begun to physically disintegrate under the intense flux.

Dances of the Planets

Dances of the Planets

Take the orbits of any two planets and draw a line between the two planet positions every few days. Because the inner planet orbits faster than the outer planet, interesting patterns evolve. Each planetary pairing has its own unique dance rhythm. For example, the Earth-Venus dance returns to the original starting position after eight Earth years. Eight Earth years equals thirteen Venus years.

Note that 8 and 13 are members of the Fibonacci number series.

Earth: 8 years * 365.256 days/year = 2,922.05 days

Venus: 13 years * 224.701 days/year = 2,921.11 days
(ie. 99.9%)

Watching the Earth-Venus dance for eight years creates this beautiful five-petal flower with the Sun at the center.

most powerful photographs

Pearl Harbor survivor Houston James of Dallas is overcome with emotion as he embraces Marine Staff Sgt. Mark Graunke Jr. during the Dallas Veterans Day Commemoration at Dallas City Hall in 2005. Sgt Graunke, who was a member of a Marine ordnance-disposal team, lost a hand, leg, and eye while defusing a bomb in Iraq in July of 2004.

Sharbat Gula (born ca. 1972) is an Afghan woman who was the subject of a famous photograph by journalist Steve McCurry. Gula was living as a refugee in Pakistan during the time of the Soviet occupation of Afghanistan when she was photographe

british novelist Jane Austen will become the face of the new 10 pound note

British novelist Jane Austen will become the face of the new 10 pound note, who is the Egyptian icon you think should be on Egypt’s banknotes?

Jane Austen was born on December 16, 1775, in England. Her novels, including Pride and Prejudice and Sense and Sensibility, are considered literary classics, bridging the gap between romance and realism.

British novelist Jane Austen will become the face of the new 10 pound note, who is the Egyptian icon you think should be on Egypt’s banknotes?

Jane Austen was born on December 16, 1775, in England. Her novels, including Pride and Prejudice and Sense and Sensibility, are considered literary classics, bridging the gap between romance and realism.

The Rothko Chapel (1964-71)

The Rothko Chapel (1964-71)

"The Rothko Chapel is a non-denominational chapel in Houston, Texas. The interior serves not only as a chapel, but also as a major work of modern art.

On its walls are fourteen black but color-hued paintings by Mark Rothko. 

‘The Rothko Chapel…became the world’s first broadly ecumenical center, a holy place open to all religions and belonging to none. It became a center for international cultural, religious, and philosophical exchanges, for colloquia and performances. And it became a place of private prayer for individuals of all faiths.’

In 1964 Rothko was commissioned to create a meditative space filled with his paintings. The works are site-specific, one of the requirements of the program.

As Rothko was given creative license on the design of the structure, he clashed with the project’s original architect over the plans for the chapel. The plans went through several revisions and architects.

Ultimately he did not live to see the chapel’s completion in 1971.

After a long struggle with depression, Rothko committed suicide in his New York studio on February 25, 1970."