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A new device mimics the sound of dolphins, allowing scientists to possibly start communicating in the language that dolphins speak.
A dolphin swims in wetlands at the Bolsa Chica Ecological Reserve in Huntington Beach, Calif., in spring 2012.
(AP Photo/The Orange County Register, Paul Bersebach)
EnlargeA new dolphin speaker device could one day help us talk with these remarkably intelligent life forms, scientists say.
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Dolphins live in a world of sound far beyond our own. They can distinguish very small differences in the frequency or pitch of sound waves, and can hear and generate low-frequency sounds below 20 kilohertz that lie within human capabilities, as well as high-frequency sounds of up to more than 150 kilohertz, well beyond the range of our hearing. In addition, dolphins not only can produce tones just as humans do, but they can also communicate at a variety of frequencies simultaneously. With whistles, burst-pulse sounds and clicks, dolphins use sound not only to communicate and to scan their surroundings and prey in the dark sea (called echolocation).
Acoustic research of dolphins to date has mostly focused on recording their sounds and measuring their hearing abilities. Relatively few audio playback experiments have been attempted, since it is difficult to find speakers that can project from a wide range of low to high frequencies like dolphins do, said Heidi Harley, a comparative cognitive psychologist at New College of Florida in Sarasota, who wasn't involved in developing the dolphin speaker.
IN PICTURES: 20 weirdest fish in the sea
Now scientists have developed a prototype dolphin speaker that can project the full range of all of the sounds dolphins make ? from those used in communication to echolocation clicks.
The researchers employed piezoelectric components that convert electricity into physical movement and vice versa. These components were capable of broadcasting both high-frequency and low-frequency sounds. The researchers precisely tailored the sizes of these components and the acrylic disk to create an extremely broad range of sounds.
"I am happy if we can communicate with dolphins using the dolphin speaker," researcher Yuka Mishima at the Tokyo University of Marine Science and Technology told LiveScience.
The dolphin speaker was developed just a few weeks ago, so dolphin scientists have not had a chance to try it out yet. Mishima and colleagues plan to work with such scientists using the new speaker. The idea is to broadcast specific series of vocalizations and then record the responses; over time, this back and forth could someday both reveal what dolphins are "saying" and allow possible human-dolphin communication.
"We know very little about how dolphins classify their own sounds ? we need more perceptual studies to find out, and this equipment may help us do that," Harley told LiveScience.
As to whether or not this invention could one day result in a human-dolphin translator device, "I think we have a lot to learn about dolphin vocalizations ? their productions are complex," Harley said. "There is still a lot of basic perceptual and acoustic analysis that needs to be done before we can make strong claims about how dolphins are using their vocalizations."
IN PICTURES: 20 weirdest fish in the sea
The scientists detailed their findings May 15 at the Acoustical Society of America meeting in Hong Kong. The research has yet to be published in a peer-reviewed journal.
Copyright 2012 LiveScience, a TechMediaNetwork company. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
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All those minutes reading your news feed in bed, messaging friends over lunch, and browsing photos on the bus really add up. Time spent on Facebook's mobile site and apps per month (441 minutes) has finally surpassed usage of its classic website (391 minutes) -- for Americans who do use Facebook on the go according to the latest report from comScore. And that's actually a big problem for the social network. Facebook usually shows four to seven ads per page on its website, but only a few ads per day in its mobile news feed. ?That means it makes a lot less money when you visit from your little devices.?In fact, yesterday Facebook had to warn potential investors?for upcoming initial public offering of stock that the more people who access it from mobile instead of the web, the worse its business is doing.zynga stock sam houston state university sam houston state university bradley manning
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The Gillmor Gang ? John Borthwick, Robert Scoble, John Taschek, Kevin Marks, and Steve Gillmor ? turned off their minds, relaxed, and floated downstream on the push notification inbox of tomorrow. Borrowing a page from the Tibetan Book of Windows, the Gang debated the impossibility of multitasking, the existence of a new uber operating system, and the overall impact of surrendering to the void. Revolver marked the exact center of the Beatles arc; everything before was prologue, everything after continues to expand as the media is transformed. A quarter of a million may seem like a lot of dollars for playing one song once on a TV show, just as we await the size of the Facebook IPO. Recorded first and sequenced last, Tomorrow Never Knows is the end of the beginning.is snooki pregnant snooki pregnant gbc hedy lamarr jack white kowloon walled city ronda rousey vs miesha tate
The masseur suing John Travolta for sexual battery in a Beverly Hills hotel is admitting a major hole in his shocking story - that the date he claimed the actor groped his crotch - January 16 of this year - is wrong.
John Doe #1 still maintains the attack happened, however.
Travolta’s lawyer has insisted from the beginning that he was in New York City during the alleged massage gone awry, proving it with flight records.
The anonymous accuser's account of the incident remains the same, however, but in a significant development, he now says it took place earlier.
“It was a miscalculation,” one source claims about him claiming the wrong date. "The lawsuit will likely be amended, but it doesn't change the facts.”
Meanwhile, the Atlanta resort hotel where John Travolta stayed at when he allegedly sexually assaulted a second masseur has been put on notice.
The hotel is preserving its surveillance video as evidence in the lawsuit filed by the man, also unidentified and also seeking $2 million in damages.
"The hotel has been notified by the masseur's attorney to preserve the surveillance video of the time when Travolta stayed there," a source said.
"The surveillance video will be crucial evidence in the case because it shows Travolta going to the spa the next day after it is claimed the incident occurred, looking for the masseur, because he wanted to see him again."
"This is all detailed in the lawsuit. Travolta was told the masseur wasn't available and he left. The masseur was extremely upset when he left Travolta's room, which would have been captured on the camera in the hall as well."
"The hotel has indicated that they will preserve all evidence in the case, including the surveillance video, and all electronic communication regarding Travolta. They are standing by the masseur," the insider says.
Management of the hotel have met with staff and placed them on a strict no-press lockdown on the subject, with the threat of losing their job.
According to the lawsuit filed by the masseur in Atlanta:
"Travolta suddenly turned on his stomach with his legs wide open with a full erection. He then tried to force Doe Plaintiff #2's hand on Travolta's scrotum."
"Then, Travolta started to grab, rub and caress Doe Plaintiff No. 2's upper thighs and buttocks."
"Travolta still had an erection and wanted his abdominals done but Travolta's erection was in the way and he refused to have his penis covered by a sheet of a pillow case cover."
"Travolta started masturbating about 15 minutes left in the session, and Doe Plaintiff #2 said he had to go."
A third accuser, identified as Fabian Zanzi, has also come forward, saying Travolta sexually harassed and propositioned him on a cruise ship.
[Photo: Pacific Coast News]
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FILE - In this Nov. 18, 2011 file photo, actress Barbara Streisand arrives at the 10th Annual Celebration of Dreams, in Santa Barbara, Calif. Brooklyn?s new Barclays Center arena announced Wednesday, May 9, 2012, that Streisand will give a concert at the venue on Oct. 11. (AP Photo/Michael A. Mariant, file)
FILE - In this Nov. 18, 2011 file photo, actress Barbara Streisand arrives at the 10th Annual Celebration of Dreams, in Santa Barbara, Calif. Brooklyn?s new Barclays Center arena announced Wednesday, May 9, 2012, that Streisand will give a concert at the venue on Oct. 11. (AP Photo/Michael A. Mariant, file)
NEW YORK (AP) ? Superstar Barbra Streisand is coming home to Brooklyn.
The Oscar- and Grammy-winning diva was born and raised in Brooklyn but has never performed publicly there ? until now.
Brooklyn's new Barclays Center arena announced Wednesday that Streisand will give a concert there on Oct. 11.
Barclays Center is still under construction and will be home to the NBA's Nets. CEO Brett Yormark says Streisand's concert will be a defining moment for the arena.
Streisand spokesman Ken Sunshine said that performing near her old neighborhood will be very emotional and poignant for Streisand.
Streisand is one of the world's best-selling recording artists and is one of the few entertainers who have won an Oscar, Emmy, Grammy, and Tony Award. She rarely performs in public.
___
Online: barclayscenter.com
Associated Press
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Kristen Stewart is going to be okay.
But the actress limped on to the set of Jimmy Kimmel Live last night following an injury she suffered during re-shoots on Breaking Dawn Part 2, during her very final scene as Bella Swan, in fact.
So, what's next for the star? Another iconic role in Snow White and the Huntsman, which opens on June 1. Watch a clip from the film, along with Stewart in all her fun awkward glory, now:
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You knew this was coming. In one hand you have the HTC One X. Tegra 3 or S4 Krait; 720p SLCD2 at 4.7-inches. Sense 4. The hotness. In the other hand, you have the Samsung Galaxy S III, the world's newest Android phone. Quad-core Exynos, 720p SuperAMOLED at 4.8-inches. The new Touchwiz and it's cool voice interaction and face recognition. It's a good time to be an Android fan.
Chances are, you aren't going to have both. So, which one would pick? Hit the poll, let us know.
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