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(Visited 36 times, 1 visits today)FacebookTwitterPinterestSave分享0 The secret of the archer fish’s powerful spits has been discovered, and it isn’t powerful muscles.The fish that shoots bugs out of the air uses physics, a paper in PLoS ONE declared. By letting physics amplify the momentum in the drop shot out of the water, the fish achieves six times the wallop its own muscles can attain. Nature News posted a video of the fish and described how it works:The researchers found that the first section of the water to leave the fish’s mouth was traveling about two meters per second. But as the fish continued to expel water into the jet, the speed increased. This back-end power forced more water and momentum into the “head” of the jet. “As a result, the power that the head of the jet can deliver upon impact increases during shooting,” the authors explained in their paper.Vailati and team found that this is similar to a mechanism used by on-demand inkjet printers. In a strange symbiosis of biomimetics, printer engineers may be able to improve their designs by studying how the fish accomplishes what they came up with independently.Nature News also quoted the authors’ evolutionary inclinations from their paper:The fish’s strategy is evolutionarily clever. “This advantage would come without the evolutionary cost for the development of highly specialized internal structures dedicated to the storing of mechanical energy,” the authors noted.See also PhysOrg and BBC News. Source: Vailati A, Zinnato L, Cerbino R (2012) How Archer Fish Achieve a Powerful Impact: Hydrodynamic Instability of a Pulsed Jet in Toxotes jaculatrix. PLoS ONE 7(10): e47867. doi:10.1371/journal.pone.0047867.Evolution is not clever. Evolution does not calculate the cost of development. Evolution does not design specialized internal structures dedicated to the storing of mechanical energy. Once again, we see evolution tacked on to a design story like some kind of vestigial organ from the 1800’s.The archer fish was one of the illustrations of design used by early films from Moody Institute of Science. It remains a good illustration today, in fact, even more so. There’s much more than muscle involved. The fish has to correct for distortion at the air-water interface, have a perfect aim, calculate the height, and know the energy required to get the bug to release its strong grip on the twig. All these things must work together for the fish to eat. How many archer fish had to die before the right mutations came along? Get real; get intelligent design.
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Izulu Lami (My Secret Sky), the first feature film by Madoda Ncayiyana, won two awards at the 2009 International Pan African Film Festival in Tarifa, Spain in May, including the Best Actress award for 11-year-old Sobahle Mkhabase.Telling the story of two children who travel from the countryside to the city after their mother’s death, Izulu Lami features a cast of mainly young children who had never acted professionally before, discovered through extensive casting from the townships and informal settlements of Durban to the rural areas of KwaZulu-Natal.The film received standing ovations at recent screenings in Japan and Zanzibar, and was a hit at the 2009 Cannes Film Festival in France. Its had its South African premiere at the Durban International Film Festival in July before opening at cinemas countrywide on 17 August.Click arrow to view trailer.
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Photo by Tristan Tamayo/INQUIRER.netArellano continued its ascent in the 2017 Filoil Flying V Preseason Premier Cup, escaping with a 67-63 victory over St. Benilde for its second win Friday at Filoil Flying V Centre in San Juan.The Chiefs squandered a 10-point lead, 65-55, in the final 2:21 of the game as the Blazers fought back and got to as close as four, 67-63, after a Yankie Haruna layup with 27.5 remaining.ADVERTISEMENT BREAKING: Cop killed, 11 hurt in Misamis Oriental grenade blast Pagasa: Storm intensifies as it nears PAR Quarters: 13-10, 36-31, 51-49, 67-63.Sports Related Videospowered by AdSparcRead Next BREAKING: Cop killed, 11 hurt in Misamis Oriental grenade blast Palace: Duterte to hear out security execs on alleged China control of NGCP LATEST STORIES St. Benilde forced another turnover, Arellano’s fourth in the last two minutes, but the clock just wasn’t on its side as JJ Domingo missed two freebies with the time winding down.Despite the eyesore of a victory, coach Jerry Codiñera would rather focus on the positives as he continues his buildup for the upcoming NCAA season.FEATURED STORIESSPORTSSEA Games: Biñan football stadium stands out in preparedness, completionSPORTSPrivate companies step in to help SEA Games hostingSPORTSMalditas save PH from shutout“Anything that will give us a positive step is always a welcome note for us and we’re embracing that,” he said. “Our turnovers were horrible, but I’ll find a way for us to improve going to the NCAA season.”Lervin Flores showed the way for the Chiefs with 16 points, nine rebounds, and six blocks, while Kraniel Villoria added five of his 14 markers in the fourth quarter, while also dishing five assists. Zach Nicholls also went 3-of-6 from beyond the arc to wound up with nine points for Arellano.The trio’s efforts made up for the silent outing of Kent Salado, who played through a mild knee injury and went scoreless in 23 minutes on the floor.Clement Leutcheu topped the Blazers (1-6) with 17 points and 10 rebounds, while Emmanuel San Juan had 10 in the defeat.The Scores:ARELLANO 67 – Flores 16, Villoria 14, Nicholls 9, Enriquez 6, Meca 6, Canete 6, Taywan 5, Rivera 3, Ongolo Ongolo 1, Abanes 1, Salado 0, Concepcion 0, Aguilar 0, De Guzman 0, Padilla 0, Chavez 0, Filart 0.ST. BENILDE 63 – Leutcheu 17, San Juan 10, Pili 6, Belgica 6, Naboa 5, Haruna 4, Mercado 4, JJ Domingo 3, Dixon 3, Sta. Maria 2, Johnson 2, Velasco 1, Castor 0, Young 0, Bunyi 0.ADVERTISEMENT Cayetano dares Lacson, Drilon to take lie-detector test: Wala akong kinita sa SEA Games Lacson: SEA Games fund put in foundation like ‘Napoles case’ MOST READ Robredo: True leaders perform well despite having ‘uninspiring’ boss PLAY LIST 02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Games Don’t miss out on the latest news and information. BSP survey: PH banks see bright horizon amid dark global recession clouds Every 18 seconds someone is diagnosed with HIV Pacquiao’s Friday training called off View comments
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Ajax goalkeeper Onana confesses he’d welcome Barcelona returnby Carlos Volcano24 days agoSend to a friendShare the loveAjax goalkeeper André Onana has confessed he’d welcome a return to Barcelona.Onana was linked with Barca over the summer.And he told Marca: “It has always been my club, it gave me everything, it allowed me to return to Europe and I am very grateful. “If Barcelona shows interest again for me, I will go with great pleasure, but we do not know what can happen. “I am very grateful to the coaches I have had.” TagsTransfersAbout the authorCarlos VolcanoShare the loveHave your say
YouTube/UHAthleticsMany had high expectations for Tom Herman as head coach. As became very apparent this season, Herman was instrumental in turning Ohio State into an offensive juggernaut despite all kinds of injury issues at quarterback last season. I don’t know that anyone realistically thought Herman would elevate Houston to this level in just one year, though. At 12-1, with an AAC title under their belt, the Cougars are off to the Peach Bowl for a New Year’s Eve showdown with ACC powerhouse Florida State. Houston fans shouldn’t need any help getting excited for this one, but just in case, Houston put together a quick 30 second teaser trailer for the game, and it is quite epic.The Cougs and ‘Noles kick off in Atlanta at noon on December 31.
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FORT ST. JOHN, B.C. – A special air quality statement that was issued by Environment Canada last Wednesday because of a large amount of smoke in the air remains in effect for all of Northeast B.C. today.Last week, officials with the Ministry of Environment said that at this point, it’s not entirely known where the smoke is coming from.Air quality meteorologist Ralph Adams said that the smoke isn’t coming from any local fires in Northeast B.C., but could possibly be coming from fires burning in the Yukon and Northwest Territories, and even as far away as Scandinavia and Siberia. “The view at the moment is that it’s likely coming from there. It’s likely that this smoke is coming from Eurasia, but at this point, there’s no agreement.” A map of the current fire danger rating in B.C. Photo by BC Wildfire Service. A map of all active wildfires on the BC Wildfire Service website shows that no new major fires have erupted in the B.C. Peace and Fort Nelson regions, where the fire danger rating is currently between very low and moderate.Of the fires that have started in Northeast B.C. recently, most are either in unpopulated areas or are less than ten hectares in size.People with pre-existing health conditions, the elderly, infants, children and sensitive individuals are more likely to experience health effects.Individuals may experience symptoms such as increased coughing, throat irritation, headaches or shortness of breath. Children, seniors, and those with cardiovascular or lung disease, such as asthma, are especially at risk. Stay inside if you have breathing difficulties. Find an indoor place that’s cool and ventilated. Using an air conditioner that cools and filters air may help. If you open the windows you may let in more polluted air. If your home isn’t air-conditioned, consider going to a public place (library, shopping mall, recreation centre) that is air-conditioned.Be air aware! Check your local weather forecasts and alerts so you know when to take extra care.For more information on current air quality, see: www.bcairquality.ca.Visit www.airhealth.ca for information on how to reduce your health risk and your personal contribution to pollution levels, as well as for current and forecast AQHI values.
Jammu: Three civilians, including two women, were injured Friday when Pakistani troops targeted forward posts and civilians areas with mortars and small arms firing along the Line of Control (LoC) in Jammu and Kashmir’s Poonch district, drawing strong retaliation from the Indian Army. With Pakistan using heavy weaponry and 120 mm mortar bombs targeting civilian areas, people have been advised to stay indoors, officials said. “At about 0830 hours, Pakistani Army initiated unprovoked ceasefire violation by shelling with mortars and firing with small arms along the LoC in Swajian sector of Poonch,” PRO defence said. The Indian Army is effectively retaliating, he said. Three persons, including two women, identified as Tasveer Akhtar, 19, and Shabina Akhtar, 18, of Chapprian village, were injured in the Pakistani shelling and they have been hospitalised, officials said. A house of one Gani Mir suffered damages in Chapprian-Sawjian forward belt, they said. As Pakistani army often targets civilian areas, people of the Chapprian-Sawjian area are demanding construction of bunkers for their safety. We are living along the zero line near the border fencing but have no protective enclosures like bunkers, said Abdul Rashid of Chapprian village. Two persons were injured when Pakistani troops resorted to firing and shelling along the LoC in the forward area in Digwar sector of Poonch last Friday.
Surat: A sessions court here Friday convicted Narayan Sai, son of jailed self-styled godman Asaram Bapu, in a rape case filed against him by a former woman devotee in 2013. The sentence will be pronounced on April 30. Besides Sai (47), who is lodged at Lajpore Jail here since 2013, the court held four of his aides, including two women, guilty of various offences. Sai was convicted under IPC sections 376 (rape), 377 (unnatural offences), 323 (assault), 506-2 (criminal intimidation) and 120-B (conspiracy). Also Read – 2019 most peaceful festive season for J&K: Jitendra Singh Of the 11 accused, six were acquitted. Additional Sessions Judge P S Gadhvi will pronounce the quantum of punishment on April 30. The minimum punishment for rape is 10 years in jail, while the maximum punishment is life imprisonment. Sai’s aides–Dharmishtha alia Ganga, Bhavna alias Jamuna and Pavan alias Hanuman–were held guilty for being part of a conspiracy. Sai’s driver Rajkumar alias Ramesh Malhotra was held guilty under IPC section 212 (harbouring an offender). Also Read – Personal life needs to be respected: Cong on reports of Rahul’s visit abroad Ganga and Jamuna, also called “sadhika” (women disciples), were accused of putting the victim in illegal confinement and thrashing her at Sai’s behest. They were also accused of trying to brainwash her into agreeing to have a relationship with Sai. Hanuman, a loyal “sadhak” (disciple) of Sai, was accused of abetment, including taking the victim to Sai’s room. Surat Police had filed a 1,100-page charge sheet against Sai in 2014. In 2013, after Asaram was arrested for raping a girl in Rajasthan, two Surat-based women accused Asaram and his son of sexual exploitation. The elder sister accused Asaram of sexual assaults between 1997 and 2006 when she lived at his Ahmedabad ashram. The younger sister accused the godman’s son of sexual assaults when she lived at Asaram’s ashram in Jahangirpura area of Surat between 2002 and 2005. Sai was arrested from Delhi-Haryana border in December 2013. When he was in jail, Surat Police claimed to have unearthed Sai’s plans to bribe police officers, doctors and even judicial officers to weaken the case against him. Asaram, meanwhile, was convicted by a Jodhpur court for rape. The trial against him in the case filed by the Surat-based woman is going on at a Gandhinagar court.
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Ohio State senior defensive end Jalyn Holmes (11) is escorted off the field in the third quarter against Nebraska in Memorial Stadium on Oct. 14. Credit: Jack Westerheide | Photo EditorInjuries go hand in hand with athletics. Athletes in all sports have to constantly manage them, even if not recovering from injuries, taking the necessary steps to prevent injuries from taking place.Therefore, in order to fully understand sports at Ohio State, it is important to consider the health of the athletes and the people in charge of ensuring an athlete’s safety. Athletic trainers are an ostensibly underappreciated yet critical component to the Ohio State Department of Athletics.Currently, Ohio State staffs approximately 19 athletic trainers, eight interns and two physical therapists. There are also 10 team physicians, four sports medicine fellows, four nutritionists, several sports psychologists, a dentist and a pharmacist, all of whom collaborate with the athletic trainers. Throughout each season for the sports, an athletic trainer will constantly need to be on site, whether it be at practice or during a game, to be there should something go wrong. Katie Walker, an athletic trainer who specializes in tennis and women’s soccer, stressed just how different the experience is for every trainer based on the injury-risk of the sport.“Soccer, obviously, is a higher-risk sport, from an acute contact injury standpoint,” Walker said. “So with soccer I’m really dialed into what’s going on in the play; people going up for headers, sliding into people.” Walker added that keying in and evaluating an athlete’s current condition while simultaneously judging how an injury impacts the athlete’s play is a necessary skill for an athletic trainer. For example, tennis players would be assessed on their form and their swinging technique in order to see how an injury might be affecting performance.In fact, the process of guiding an athlete through an injury is one of the primary responsibilities for any athletic trainer.“Once you start to know your athletes and know their personalities and have treated them through so many injuries, it just becomes fun to watch people you know and to watch people who you helped get back on the court or back on the soccer field,” Walker said. “And that’s really where the enjoyment for athletic training comes from.”Walker said there are multiple steps to addressing an injury during a game. The first action the protocol calls for is evaluating if the injury is major or is a high-risk type of injury.If the injured player is physically capable of moving himself or herself to the sideline, the trainer will move the athlete to the sideline and further evaluate the injury with the available team physician. Treatment such as ice or taping then might be applied on the field to reduce recovery time.After the game, more in-depth treatment like crutches or walking boots would be applied in the athletic training facilities. Documentation is the final step, as all athletic trainers must report any sort of injury into their computer medical database. Preventing injuries is another key component to an athletic trainer’s arsenal. The term “prehab” is used among athletic trainers to describe preventing future injuries with players who are currently rehabbing. Walker said prehab consists of working with strength and conditioning coaches to incorporate exercises that focus on building muscle in areas with high-risk injuries, such as ACLs and shoulders. Athletic training also relies heavily on being updated with equipment and technology. Like any medical field, having the best techniques and technology allows for quicker recovery and eases an athletic trainer’s job.Women’s soccer uses Polar Team Pro heart rate and GPS monitors in order to track cardiovascular and muscle stress. Another technology utilized is Omegawave, which is a system of electrodes that calculate changes in heart rate, which aids with recovery. Omegawave can also highlight any cardiovascular discrepancies that might impact an athlete’s ability to play.Other techniques and equipment are vastly improving and the idea of unique improvements to the athletic training field is being constantly recognized every year. The concept of athletic training is much more than simply concussion protocols and taping ankles. Although they might not be starring in any of the hype videos or postgame interviews, the athletic training staff are essential for keeping Ohio State’s athletes continually performing at high levels.