Friday, November 3, 2017

In findings reported on Tuesday, an international team of astronomers discovered an exoplanet, called NGTS-1b, revolving around M-dwarf star NGTS-1, that the team said does not fit existing notions of how stars and planets form. NGTS-1b is a gas giant, similar to Jupiter and of comparable volume and mass, but its parent star is about half the diameter and mass of the Sun, making this the most massive planet orbiting an M-dwarf ever discovered.

NGTS-1b, about 600 light years from the Earth, is so extremely close to its star that a revolution around its star takes only about 2.6 Earth days — 2.647298 ± 0.000020 — and its surface temperature is about 800 K. The planet was discovered by observing periodic fluctuations in the star’s apparent brightness as NGTS-1b passed in front of it. NGTS-1b’s mass is less than Jupiter, about 0.812 MJ (mass of Jupiter), but it has greater volume, with radius about 1.33 RJ (radius of Jupiter). Its density was reported to be 0.42 g cm^-3 (with error: +0.59 to -0.28), meaning Jupiter, whose density is 1.326 g cm^-3, is likely around thrice as dense as the exoplanet.

“The discovery of NGTS-1b was a complete surprise to us,” said lead author Doctor Daniel Bayliss of the University of Warwick, in England. “[S]uch massive planets were not thought to exist around such small stars. This is the first exoplanet we have found with our new NGTS facility and we are already challenging the received wisdom of how planets form.”

The existing understanding of planetary formation, the team explained, says small stars can produce rocky planets but cannot pull in enough mass for larger, gaseous ones like NGTS-1b. Based on the observations, NGTS-1’s radius is 0.573±0.077 R? (solar radius) and using that value, astronomers calculated its weight to be about 0.598 M? (solar mass). The star’s density is almost ten times of the gas giant, 4.4 (with error: +2.4 to -1.4) g cm^-3. In comparison, the Sun’s density is 1.409 g cm^-3.

The research team discovered NGTS-1b using the Next-Generation Transit Survey (NGTS), an array of telescopes physically located in Chile, which was designed to search for planets around bright stars. NGTS-1 is a relatively dim red M-dwarf, which are very common in the universe, of apparent magnitude 15.52 ± 0.08. University of Warwick professor Peter Wheatley, who runs the NGTS, said, “NGTS-1b was difficult to find, despite being a monster of a planet, because its parent star is small and faint. Small stars are actually the most common in the universe, so it is possible there are many of these giant planets waiting to be found.”

To date, scientists have discovered only three gas giants which revolves around M-dwarf stars. The other two are Kepler-45b and HATS-6b which have masses 0.505 M_J and 0.32 M_{J respectively.}

Tuesday, September 28, 2010

A man wearing a ski mask and carrying an assault rifle apparently killed himself in the library of the University of Texas in Austin, Texas earlier today.

The university was placed under lockdown and all classes were canceled as a result of the incident. Nobody else was hurt, but police are still looking for a possible second gunman. Art Acevedo, the chief of Austin police, said that officials are also considering the possibility of explosives left by the suspect. Armored vehicles were seen moving around the campus in response to the event, as well as {{w|SWAT team|SWAT teams}, bomb-sniffing dogs, and police helicopters. An ambulance was seen around 9:00 a.m. CDT (1400 UTC) at the University of Texas’ Perry-Castaneda library.

The school’s website included a notice this morning, which read: “The person involved in this morning’s shooting on campus has been confirmed dead on the sixth floor of the Perry-Castaneda Library from an apparent self-inflicted gunshot wound. Law enforcement are searching for a second suspect. If you are off campus, STAY AWAY. If you are on campus, lock doors, do not leave your building.” The gunman was reportedly killed by a self-inflicted gunshot wound, and no shots had been fired by law enforcement officials.

The shooter has not yet been identified, and the reason behind the incident is not yet known. Witnesses described the man as wearing a dark suit and ski mask, and carrying an assault rifle. Randall Wilhite, a professor at the university, said that he heard gunshots while going to class and saw the suspect heading toward the library just after 8:00 a.m. CDT (1300 UTC). The gunman appeared to be firing shots randomly. “When I pulled up in my car, he stood right in front of me and didn’t stop running but turned in my direction, fired three shots into the ground to the left of my car and kept running,” said Wilhite. The gunman had the chance to shoot students, added Wilhite, but he did not appear to be targeting them.

The school, which has around 50,000 students, sent out an alert around that time warning students to stay where they were. Robby Reeb, a senior at the school, said that “a guy sprinted past me screaming, ‘There’s a guy with a gun.’ I looked up and saw a man in a ski mask, wearing a suit, and carrying an assault rifle. And I called 911.”

Police said that the gun used in the shooting was an AK-47, and that they were examining two different crime scenes: where the shots were fired outside, and where the gunman was found dead in the library. Police would not say whether he was attending the university. Chief Acevado said that there were “reports of a second suspect that was wearing a beanie with a long rifle, wearing blue jeans and a black top” that “may or may not be a white male.”

Several hours after the lockdown began, police allowed students to leave the university’s campus, although nobody is still allowed to enter.

The school was also the site of a shooting spree on August 1, 1966, in which university student Charles Whitman fatally shot fourteen to sixteen people and wounded another 32 before being himself killed by law enforcement authorities; reports of the exact death toll are inconsistent. Whitman, a former U.S. Marine, shot students from the observation platform of the school’s tower. That event was the deadliest school shooting in the United States until the 2007 Virginia Tech massacre.

Monday, December 31, 2007

What would you tell your grandchildren about 2007 if they asked you about it in, let’s say, 20 year’s time? If the answer to a quiz question was 2007, what would the question be? The year that you first signed on to Facebook? The year Britney Spears and Amy Winehouse fell apart? The year author Kurt Vonnegut or mime Marcel Marceau died, both at 84?

Let’s take a look at some of the international stories of 2007. Links to the original Wikinews articles are in bold.

Saturday, June 18, 2016

Yesterday in UEFA Euro 2016, Italy defeated Sweden 1–0 and assured their advancement to the knock-out stage. Croatia vs Czech Republic resulted in a 2–2 draw and Spain defeated Turkey 3–0 as Álvaro Morata scored twice. Spectators from the Croatian end threw flares before the final whistle.

Italy faced Sweden in the first match of the day. Sweden led in terms of ball possession but, in the 88th minute, Éder scored for Italy. Italian captain Gianluigi Buffon was yellow carded in injury time as he delayed a goal-kick. Italy numerically assured their advancement to the knock-out stage by winning this game.

Croatia were 1–0 up at half time as Ivan Periši? scored in the 37th minute. FC Barcelona midfielder Ivan Rakiti? scored a second goal for Croatia chipping the ball over Petr ?ech just before the one hour mark. Later, Milan Škoda scored from a header in the 76th minute for the Czechs. The match seemed to being inching towards a 2–1 victory for Croatia but Czech Republic won a penalty and Tomáš Necid equalised late in the match, having replaced Jaroslav Plašil.

In the 86th minute, spectators threw flares on the ground and delayed the game by five minutes. A hearing is scheduled to take place today.

Later, Davor Šuker, president of the Croatian Football Federation, said, “We will seek the help of the French police [to investigate] […] Something is rotten in our country, and this […] deserves zero tolerance.”^{((hr))Croatian language: Tražit ?emo od francuske policije pomo? našem sudstvu, da se vidi tko baca baklje […] Nešto je trulo kod nas, a ovo ostalo zaslužuje nultu toleranciju.}

Turkish captain Arda Turan faced his FC Barcelona teammate Andrés Iniesta as Turkey took on Spain. Spanish captain Sergio Ramos was booked in the opening moments of the game. Just after the half-hour mark, Nolito assisted Álvaro Morata, who scored a header. Three minutes later, Nolito scored the second goal of the match. Three minutes after half time, Morata scored from Jordi Alba’s pass.

Spain won the game 3–0 and qualified for the Last 16 knockout phase.

David de Gea maintained a clean sheet for his first five international appearances and set a new world record breaking the previous record of Gordon Banks.

Tuesday, September 27, 2005

Brampton – Suresh Joachim of Mississauga, Ontario continues to amaze, breaking yet another world record, this time at The Bay Court in Shoppers World.

From Thursday, September 22 at 8 am, to Saturday, September 24 at 3:05 pm, Suresh ironed continuously for 55 hours and 5 minutes, in front of the thousands of onlookers shopping at the mall those three days.

The achievement, now submitted to the Guinness Book of World Records, breaks the previous record by Eufemia Stadler of Zurich, Switzerland. Stadler completed 40 hours of continuous ironing from September 16-18, 1999.

Originally from Sri Lanka and Australia, Joachim is no stranger to the folks at Guinness. He currently holds twenty other records, ranging from greatest distance travelled on ‘up’ and ‘down’ escalators (225.44 km between May 25 and May 31 1998), furthest travelled on a treadmill in one week (659.27 km at a gym in Paris, France), and longest dance marathon by an individual (100 hours at the Dixie Outlet Mall).

This September, Suresh watched television in the lobby of WABC in New York City for 69 hours and 7 minutes, breaking the previous record by 19 hours. The event was covered daily on the talk show “Live with Regis and Kelly” as part of their Guinness World Record Breaker Week. He also recently set the record for longest time rocking in a rocking chair, at 75 hours.

A DJ on BBC Radio Cambridgeshire recently tried to break Joachim’s record for longest continuous time as a DJ. He was unsuccessful, and Suresh’s 120-hour World Record set on Geethavaani Tamil Radio in Scarborough stands unharmed.

The event helped raise funds for the Universal Fund for Suffering Children, whose funds are “utilized to save the world’s children from poverty, disease and war.” All of Joachim’s stunts have been dedicated to this charity.

What’s next for Suresh? He plans to start static cycling from October 18th, 2005 to October 22nd, 2005, in Britain. Suresh’s goal is 150 world records, which would beat the long-time record breaker Ashrita Furman, who has accumulated 94 records. While Furman started two decades ago, Suresh only discovered the Guinness Book of World Records in 1991, and started record breaking in 1996.

You can visit Suresh online at www.sureshjoachim.org

Friday, March 11, 2011

Japan’s government has declared its first ever “nuclear emergency” after pressure rises in the No. 1 reactor at the Fukushima Daiichi power plant, combined with a minor radiation leak, caused a 10 km radius around the plant to be evacuated. An attempt to relieve the pressure inside the containment vessels of the plant has been delayed.

The Tokyo Electric Power Company’s 40-year old nuclear facility, 270 km NE of Tokyo, reported mechanical difficulties with its cooling system, although the automated shutdown systems worked correctly. With the core reaction shut down the plant is no longer actively generating heat, but the fuel rods continue to generate excess heat and radiation and need constant cooling.

The cooling system runs a constant flow of water to take the heat away from the submerged fuel rods, but the pumping system requires electricity to operate even after the plant is no longer producing electricity itself—generally from back-up diesel or natural gas generators.

Saturday, August 12, 2017

Yesterday, the state government of Victoria, Australia announced their decision to trial self-driving vehicles on two of the state’s major connecting motorways, the CityLink and Tullamarine Freeway. The trial is to use autonomous vehicles from automobile companies including BMW, Mercedes-Benz, Volvo, and Tesla. The two-year trial is to have three phases.

The cars are to drive alongside commuters, but in public testing a driver is always to be present, as Victorian law requires drivers always keep a hand on the steering wheel. However, in occasional closures of the Burnley Tunnel, with no other drivers to endanger, the cars are to be tested with nobody in the vehicle.

Lane assist, cruise control, and recognition of traffic signs are in the trial’s first phase, expected to complete before the end of the year. This includes monitoring how the driver-less cars respond to road conditions, including lane markings and electronic speed signs.

“Victoria is at the forefront of automated vehicle technology — we’re investing in this trial to explore ways that this technology can be used to reduce crashes and keep people safe on our roads”, said Luke Donnellan, the Victorian Minister for Roads and Road Safety. He noted, “Ninety per cent of the fault of accidents is human error […] so we know that if we can take out human error we will have less accidents”.

Tim Hansen, Victoria Police’s Acting Assistant Commissioner, said that police had founded a project team to investigate how self-driving vehicles would change policing on roads. “Can we intercept vehicles more safely to avoid pursuits and ramming?”, he asked.

The trial is a partnership between the state government, Victoria’s road management authority VicRoads, owner of the CityLink toll road Transurban, and insurance company RACV.

Saturday, August 23, 2008

London, Ontario is the latest in a string of Canadian cities to have acted on increasing public demand to ban bottled water. On Monday, the decision to eliminate bottled water sales in city-run facilities was passed by London’s city council with a vote of 15-3 in favour. The move was driven by a desire to reduce waste and shipping, have a lower impact on the environment and promote tap water as a cheap and safe alternative.

London’s new restrictions will be implemented over the next several months in buildings that are already equipped with water fountains. Bottled water will still be permitted at many city-run events, such as upcoming summer festivals. Privately-owned retailers will not be affected by the ban.

Other cities, such as Vancouver, Ottawa and Kitchener, that are already engaged in debate on the issue, may now be watching London carefully for how the ban plays out. Other areas have already begun to phone London with questions on the details of its new regulations. Toronto has begun taking a look at bottled water packaging as part of its waste diversion strategy, and its public school board is looking into the possibility of a total restriction on bottled water sales.

In recent years, an awareness of the energy that is required to manufacture, transport and recycle the product has spread nation-wide. Proponents of the ban point to the fact that it can produce as much as 150 times the volume of greenhouse gas when producing bottled water as compared to supplying the same volume of tap water. They also point out that the water that goes into bottled water products is not inspected as frequently as tap water in Canadian cities.

Some have taken this cause to heart more than others, such as British Environment Minister Phil Woolas, who called the use of bottled water “morally unacceptable.” Restaurant critic Giles Coren of The Times of London criticizes those who use the product as “the new smokers.”

Canada’s beverage industry has come down with criticism on the increasing opposition to bottled water. Spokesman Scott Tabachnick for Coca-Cola Co., which produces Dasani brand bottled water, commented on the convenience of the product: “It’s hard to bring your kitchen sink with you.”

Vancouver City Councillor Tim Stevenson thinks that bottled water’s time has come and gone: “Bottled water companies have had a fabulous ride on an unnecessary fad.” Vancouver officials are still determining how bottled water restrictions, which have been voted for by the City Council, can be phased in.

Next month, the city is planning to initiate a marketing campaign encouraging Vancouver residents to choose tap water and to remember to carry reusable drinking containers whenever possible.

Renowned environmental activist Dr. David Suzuki has praised London’s decision, saying that it represents a turning point for people’s perceptions on the issue: “I’m really delighted that London has done this because it really makes us focus on some fundamental issues.” He hopes that someday people will “look at anyone who hauls out a bottle of water and say, ‘What the hell’s wrong with you?'”