WILMINGTON, MA — Below are 5 things to do in Wilmington on Monday, May 13, 2019:#1) Wilmington Board of Selectmen MeetingThe Wilmington Board of Selectmen meets at 7pm in Town Hall’s Room 9. (An Executive Session precedes the meeting at 6:15pm). Read the agenda HERE.#2) Wilmington Historical Commission MeetingThe Wilmington Historical Commission meets at 7pm at the Town Museum. Read the agenda HERE.#3) Wilmington Housing Authority MeetingThe Wilmington Housing Authority meets at 5pm in Deming Way’s Community Hall. Read the agenda HERE.#4) Woburn Street School’s School Advisory Council MeetingThe Woburn Street School’s School Advisory Council meets at 3pm in the Woburn Street School’s Teachers Room. Read the agenda HERE.#5) Tech Buddies Drop-InThe Wilmington Memorial Library (175 Middlesex Avenue) is holding a Tech Buddies Drop-In Session from 2:30pm to 3:30pm. Need technology help, but Brad isn’t here? Drop in at a Tech Buddies session! Tech Buddies is a new volunteer program connecting teens and members of the Wilmington community in need of assistance navigating their phones, tablets, cameras, and the Cloud.Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email email@example.com.Share this:TwitterFacebookLike this:Like Loading… Related5 Things To Do In Wilmington On Monday, September 9, 2019In “5 Things To Do Today”5 Things To Do In Wilmington On Monday, June 10, 2019In “5 Things To Do Today”5 Things To Do In Wilmington On Monday, March 11, 2019In “5 Things To Do Today”
Gold was mired near a three-month low on Tuesday on expectations the U.S. Federal Reserve was well on track to raise interest rates before the end of the year.A forecast-beating U.S. October employment report on Friday pushed up bets that the Fed will increase interest rates in December for the first time in nearly a decade, weighing on the price of non-interest bearing gold.”Gold will stay below $1,100 as the interest rate hike becomes more and more imminent,” said Mark To, head of research at Hong Kong’s Wing Fung Financial Group.Spot gold was little changed at $1,092.60 an ounce by 0241 GMT. Bullion ended an eight-day losing run on Monday, but not enough to pull it far away from Friday’s low of $1,084.90, its weakest since Aug. 7.Following bullion’s recent steep drop, MKS Group trader James Gardiner said “a bounce, or at least a consolidation, is well overdue”. He pegged the next support level for gold at around $1,074 and then at $1,050.The dollar hovered just below a seven-month peak against a basket of major currencies, having consolidated its payrolls-inspired rally in a subdued session overnight. [USD/]U.S. gold for December delivery gained 0.4 percent to $1,091.90 an ounce.After a potential rate hike in December, the U.S. central bank may take its time in raising rates further which should be broadly supportive for gold, said INTL FCStone analyst Edward Meir.But Meir said the metal faces more weakness in the near term and “poor technicals and a buoyant dollar do not help gold’s upside case much either”.While the market braces for a U.S. rate hike, a consensus is forming at the European Central Bank to take the interest rate it charges banks to park money deeper into negative territory in December, in a move that could weaken the euro and push up inflation. [nL8N134447]Spot platinum slipped 0.3 percent to $907.55 an ounce after coming close to Monday’s one-month low $904.75.
Prothom Alo illustrationPolice on Tuesday arrested a young rickshaw-puller for allegedly raping a 12-year-old girl in the city’s Purbail area on Monday, reports UNB.The arrestee is rickshaw-puller Faruk, son of Abdul Zabbar of Fulbari in Dinajpur district.Police said Faruk had been staying at a rented house in the area where the minor girl was also living with her parents on the same premises.They said the girl was alone at their home when her parents, both assistants to a local mason, went out for work in the morning.At noon, Faruk allured the girl out of their home and took her to the first floor of a nearby two-storey building in the area and violated her there.Hearing her screams, locals rushed in and took the victim to Shaheed Tazuddin Ahmad Medical College Hospital.Faruk, however, managed to flee the scene.Later, police arrested Faruk from Mirpur area in the capital, a day after the victim’s mother filed a case with Pubail police station, said Nazmul Haque Bhuiyan, officer-in-charge of the police station.
Journal information: arXiv More information: Space-time crystals of trapped ions, arXiv:1206.4772v1 [quant-ph] arxiv.org/abs/1206.4772AbstractGreat progresses have been made in exploring exciting physics of low dimensional materials in last few decades. Important examples include the discovering and synthesizing of fullerenes (zero dimensional, 0D), carbon nanotubes (1D) and graphene (2D). A fundamental question is whether we can create materials with dimensions higher than that of conventional 3D crystals, for example, a 4D crystal that has periodic structures in both space and time. Here we propose a space-time crystal of trapped ions and a method to realize it experimentally by confining ions in a ring-shaped trapping potential with a static magnetic field. The ions spontaneously form a spatial ring crystal due to Coulomb repulsion. This ion crystal can rotate persistently at the lowest quantum energy state in magnetic fields with fractional fluxes. The persistent rotation of trapped ions produces the temporal order, leading to the formation of a space-time crystal. We show that these space-time crystals are robust for direct experimental observation. The proposed space-time crystals of trapped ions provide a new dimension for exploring many-body physics and emerging properties of matter. Citation: Physics team proposes a way to create an actual space-time crystal (2012, July 9) retrieved 18 August 2019 from https://phys.org/news/2012-07-physics-team-actual-space-time-crystal.html Explore further Wilczek thought that it should be possible to construct a space-time crystal because crystals naturally align themselves at low temperatures and because superconductors also operate at very low temperatures; it seemed reasonable to assume that the atoms in such a crystal could conceivably move or rotate and then return to their natural state naturally, continually, as crystals are wont to do as they seek a lowest energy state. He envisioned a rotation with a ring of ions that flowed separately rather than as a stream, likening it to a mouse running around inside of a snake laying as a circle. The bulge would flow, rather than the snake itself spinning and would just keep on going, potentially forever. The problem was, he couldn’t figure out how such a crystal structure could be created in the real world.Taking Wilczek’s original idea, but not his method for creating a real world example, Li et al, suggest that to create a space-time crystal all that’s needed is a better ion trap. They believe that if ions could be forced using such a trap, into a ring at very low temperatures, as a superconductor, all that would be needed would be a little nudge from a tiny bit of a magnetic field to cause the ions to begin rotating as a single ring. Because there would be no resistance, and because of their natural mutual repulsion, the ring should then continue rotating indefinitely with no additional injection of energy, resulting in the space-time crystal that Wilczek imagined.The team is quick to point out, for those that might be making the jump, that the result would not be the mythical perpetual motion machine because no energy could be extracted from the space-time crystal. They do believe that building an actual space-time crystal should be possible though, in the near term if a future team has the funds necessary to overcome the difficulty of creating a better ion trap. Schematic of creating a space-time crystal. a, A possible structure of a space-time crystal. It has periodic structures in both space and time. The particles rotate in one direction even at the lowest energy state. b, Ultracold ions conﬁned in a ring-shaped trapping potential in a weak magnetic ﬁeld. The mass and charge of each ion are M and q, respectively. The diameter of the ion ring is d, and the magnetic ﬁeld is B. c, The pseudo-potentials (Vext) for a 9Be+ ion in a quadrupole ring trap (solid curve) and a linear octupole trap (dashed curve) along the x or y axis. See arXiv:1206.4772v1 paper for details. (Phys.org) — Earlier this year, theoretical physicists Frank Wilczek, of MIT put forth an idea that intrigued the research community. He suggested that it should be possible to construct a so called space-time crystal by adding a fourth dimension, movement in time, to the structure of a crystal, causing it to become an infinitely running clock of sorts. At the time, Wilczek acknowledged that his ideas on how to do so were inelegant, to say the least. Now another international team led by Tongcang Li has proposed a way to achieve what Wilczek proposed using a far more elegant process. They have posted a paper on the preprint server arXiv describing what they believe is a real-world process for creating an actual space-time crystal that could conceivably be carried out in just the next few years. © 2012 Phys.org Time crystals could behave almost like perpetual motion machines This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Kolkata: Police arrested four BJP workers in connection with the murder of Trinamool Congress worker Sheikh Dildar, who was shot dead on Monday during a ruckus that broke out over filing of nominations at Suri in Birbhum. Police arrested all four of them, after preliminary investigation revealed their involvement in the incident.The investigating officers came to know about their involvement in the incident, after speaking to some of the local people who had witnessed the chaos, in which several houses were damaged and some were even set on fire at Suri I block of Birbhum. Also Read – Heavy rain hits traffic, flightsActing on a tip off, police conducted a raid at Koridha in Suri and arrested Sheikh Safiul, Gautam Kora, Bablu Sheikh and Asit Sarkar. All four were produced before the court and they were remanded in custody of police for seven days. Police came to know from local people that all four were BJP workers.Sources said that police will try to know from them about others who are suspected to be involved in the incident. It may be recalled that senior Trinamool Congress leader and the state Urban Development and Municipal Affairs minister Firhad Hakim had said that BJP had brought in miscreants from the neighbouring state of Jharkhand, to foment trouble in the state ahead of the Panchayat polls. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedHe had said that the group of criminals that had created the chaos at Suri on Monday, which claimed the life of Dildar, was also behind the incidents at Mohammad Bazar and Nalhati. The police are trying to get hold of the “outsiders”, who were behind the Suri incident.The victim’s father had lodged a complaint with the police in this connection and the investigating officers spoke to the victim’s family members and friends to probe into the incident.The police are in search of the other accused who were involved in the incident and they are also speaking to the people who had seen the miscreants approaching the spot.