Wednesday August 24, 2016
DF: The amazing thing I learned when we discovered the Upsilon Andromedae system is that our Solar System s actually dynamically full of planets. When people who model the Solar System try to drop in an extra planet, the whole system goes into chaos--some planets are lost, some fall into the star, some are ejected, and then everything finally settles down. Each planet has its own gravitational domain and those domains are pushed up next to each other. Our Solar System resides on the verge of instability it's stable, but only just.
CI: Is this related to the numerical coincidence of their nearly geometric spacing?
DF: Bode's law? Yes. They clear out disks; many lines of evidence suggest that core accretion is the correct model. Then they begin to migrate in until they come into a zone; again, if they get any closer. they're ejected. When I noted this back in 2000, Hal Levinson raised his hand and said, "No, no, that's not true--there a place between Mars and Jupiter where a Venus-sized planet will survive." And I think, "How many simulations did you have to run to find that tiny little window? That doesn't count!" [Laughs](269-270).
The WI question is obvious. What if there was a planet the mass of Venus orbiting in our solar system between Mars and Jupiter?
This planet--call it *Ceres, after the largest dwarf planet orbiting between Mars and Jupiter--would be a big one. Venus is more than 80% as massive as the Earth. Such a massive planet would be able to hold onto its volatiles--its atmosphere, its water--in a way that a nearer Mars could not. This planet might even be massive enough to be geologically active. *Ceres might provide a relatively hospitable environment, more hospitable than Venus or even Mars.
It's important to not overstate this potential habitability. Whatever the precise nature of its orbit, *Ceres would also be very cold, orbiting outside of the orbit of Mars and likely even an elastic definition of our sun's circumstellar habitable zone. A sufficiently dense heat-retaining atmosphere might change things, but would it warm *Ceres enough?
Given *Ceres' location near the frost line of the solar system, and its high gravity, it's likely to have attracted and kept quite a lot of ice. Perhaps it will be an ocean world; perhaps it will be a world with a frozen surface on top of a planet-wide ocean, a super-Europa even. As seen in the night sky from Earth, its atmosphere and icy surface may make it very bright indeed.
Tuesday August 23, 2016
When I was looking into them a year ago they had not yet come to my area but what I had heard was that the customer service and technical support where very slow to react to issues etc.
I was also wondering how they deliver the 5 mbs download in rural areas? is it through cell tower modems?
Do they actually deliver the speeds advertised etc.
I am really tired of bell being my only option and paying for speeds we do not get.
Sorry for the wall of text. thank you for any help you may provide....
No earthquake, flood or hurricane destroyed old Toronto. No war laid it waste. Bulldozers and cranes knocked down scores of fine buildings in the rolling wave of destruction called urban renewal.
Countless Victorian houses fell to the wrecker’s ball. So did the old Trinity College, the grand General Post Office and the castle-like University Avenue Armouries. So did Chorley Park, the Rosedale mansion that was once the official residence of the lieutenant-governor.
Steve Metlitski shakes his head at the folly of it all. The developer, who comes from Belarus and arrived in Canada in 1989, was appalled when a friend took him to Guild Park atop the Scarborough Bluffs. Spread about its grounds are fragments from majestic buildings torn down in the post-war building boom: columns, arches, facades – the ruins of what once was. He thinks it’s “criminal, just insane” that Toronto was so careless with its architectural heritage.
Built in 1889, the Great Hall at Queen and Dovercourt was home to the first West End YMCA; most recently, it has served as a community arts centre and performance space. (Fred Lum/The Globe and Mail)
In his small way, Mr. Metlitski is trying to preserve a part of what is left. As the owner of Triangle Development, he is overseeing a painstaking, top-to-bottom renovation of one of Toronto’s last Victorian gems: the Great Hall at Dovercourt Road and Queen Street West.
Opened in 1890 as the first West End YMCA, the building has a colourful history in several chapters – first as the Y before the organization opened a new building up the road at College Street and Dovercourt in 1912; then as home of the Royal Templars of Temperance, a group that fought the scourge of alcohol abuse; then headquarters of the Polish National Union, when it published a Polish newspaper and took in Polish refugees of the Second World War; and finally, in the last couple of decades, as a community arts centre and performance space where musicians from Feist to Metric to Daniel Lanois came to play.
Even the “greenest” fair in North America couldn’t avoid throwing out an estimated 300,000 kilograms of waste on its first weekend, according to the facility’s services coordinator.
Brian Dow said over 18 days, from Aug. 19 to Sept. 5, the Canadian National Exhibition collects about 1.8 million kilograms of waste. The CNE also boasts an “extremely aggressive” waste-diversion program designed to offset the fair’s environmental impact, said general manager Virginia Ludy.
And though CNE staff says they’ve diverted about 86 per cent of waste from landfills in the last decade, they’re still looking for ways to improve.
“There’s still 14 per cent to get better at and hopefully at some point in time, we’ll get to a complete 100 per cent diversion,” Ludy said.
Food waste is especially focused upon, with at least 111 vendors in the food building this year, 26 food trucks scheduled to arrive next weekend and about 1.6 million visitors — most of them hungry — to the fair.
Transit planners across the Toronto and Hamilton region can either embrace new and disruptive technology like Uber, or resign themselves to a future of endless gridlock compounded by striking taxi drivers and a gutted public transit system that hardly anyone uses, according to a new report by the University of Toronto’s Mowat Centre.
“That’s a pretty decent takeaway from the report,” said co-author Sara Ditta with a laugh.
While that dystopian vision comes from the report’s somewhat stylized worst-case-scenario description, Ditta said the themes underpinning it are serious and pressing.
“The fact is that shared mobility is here,” Ditta said. “It has and will continue to change how people travel, and policy makers need to take steps to address that.”
“Shared mobility” is the term Ditta and her colleagues use to describe the current shift away from personal ownership of things like bikes and cars toward shared use of those resources though apps such as Uber and Lyft, publicly-owned bike share programs and other innovations of the so-called “sharing economy.”
There’s a card catalogue at the University of Toronto’s Robarts Library that does more than help people look for books.
Instead, what people find inside can one day turn into everything from beans to watermelons.
It’s one branch of the Toronto Seed Library, where people can “borrow” seeds through a program aimed at bringing gardening to people who might not otherwise be able to dig in.
The city’s 22 branch network has been growing since 2012 and has dispensed at least 100,000 seed packets — many of them to new Canadians and people who might not otherwise be into gardening, like high-rise renters.
[. . .]
“Except where book libraries keep knowledge in the commons, seed libraries keep seeds part of the commons and accessible to everybody,” she said. “The idea is that, until very recently in history, you couldn’t buy seeds, everyone would just save and trade them amongst themselves.”
It’s hard to tell whether Penny Oleksiak’s neighbours in the Beach cheered harder during her races than they will for her return.
Both are causes for fanfare.
“There’s a buzz on,” says Johanna Carlo, a board member of the Beach Village BIA, which is organizing a homecoming parade for Beach-area athletes on Sunday.
Oleksiak’s big return could be Tuesday at 5: 30 a.m., when Air Canada flights with athletes from several Canadian Olympic teams will land at Toronto Pearson.
The swimming team is one of them. The 16-year-old four-time Olympic medalist’s performance stunned us all watching at home, set the pace for Canada’s own performance in Rio and swept Toronto’s east end, where she’s from.
Two trains are travelling in opposite directions, one headed eastbound at 48 kilometres per hour and another westbound at 80 kilometres per hour, before sideswiping each other at a railway crossover in midtown Toronto.
Why did the westbound train operator see the stop signal so late? No, this isn't a high school math problem. It's a key point in the investigation into a Canadian Pacific train derailment that spilled 1,100 litres of diesel fuel near the residential Annex neighbourhood early Sunday morning.
New details emerged Monday as officials looked into the crash that left four rail cars leaning and damaged the tracks.
Neither train was speeding, the Transportation Safety Board says, and CP Rail ruled out mechanical problems, instead pointing the finger at human error, something it reiterated on Monday.
"After careful review, we determined that all track, equipment and signal systems worked as designed, and our preliminary investigation indicates human error is to blame," the railway said in a statement, adding, "We know one incident is too many."
On Monday, the union representing CP Rail workers called that conclusion "premature" but said it understands two of its workers are being investigated.
Rated: Parental Guidance
Runs: 128 minutes
Director: Hirokazu Koreeda
Starring: Haruka Ayase, Ryôhei Suzuki, Ryô Kase, Masami Nagasawa
Language: In Japanese with English subtitles
Awards: Japanese Academy Award winner for Best Picture, Director, and Cinematography
This utterly enchanting tale of female family bonds (mothers, daughters, sisters) finds three twentysomething siblings travelling to the funeral of their estranged father, and meeting their 14-year-old half-sister for the first time. While Sachi, Yoshino and Chika live together with their shared memories, young Suzu seems all alone, until her new-found family invite her to come and live with them in Kamakura... Despite the melancholic old wounds which her presence reopens, Suzu proves an entirely positive presence in this lovely, generous, and touching adaptation of Akimi Yoshidas graphic novel Umimachi Diary... As its magical spell takes hold, so the films true depths become apparent, each character dealing in their own way with the departure of a parent, and issues of love, loyalty and loss. A soundtrack of simple piano motifs with plaintive woodwind and strings emphasises the domestic milieu (the preparation and consumption of food is a key theme) and captures the ecstatic sunshine of a bicycle ride through a tunnel of pink cherry blossoms. - Mark Kermode, The Observer
- blogTO shares some photos of Toronto in the gritty 1980s.
- The Dragon's Gaze links to a paper examining the habitable zones of post-main sequence stars.
- Far Outliers notes the ethnic rivalries among First World War prisoners in the Russian interior, and examines how Czechoslovakia got its independence.
- The Map Room Blog looks at the mapping technology behind Pokémon Go.
- pollotenchegg looks at how the populations of Ukrainian cities have evolved.
- Savage Minds considers anthropology students of colour.
- Transit Toronto notes
- Window on Eurasia suggests the post-Soviet states built Soviet-style parodies of capitalism for themselves.
Here’s a photographic journey through the process I took to set, print and bind a book of klischees. Making books, it turns out, is well within the realm of the possible for everyday people: all you need is paper, glue and patience.
I started by printing the signatures for the book. On standard letter-sized card stock I printed four klischees on each side. The setup in the chase looked like this:
And a prototype of the finished signatures looked like this:
The printing took several weeks, off an on when I had time. I printed in batches of 2 or 3 pages a session, and ended up with seven pieces of 8-1/2 x 11 inch card stock printed double-sided. When I sliced these in half I had fourteen pieces of 4-1/4 x 11 inch card stock, ready for folding.
Scoring and Folding
I scored each of the 4-1/4 x 11 inch pieces:
Then folded each on in half along the score:
I then used a bone folder – an invaluable tool that only appears to have any utility once you actually use it for something – to enhanced the folding a little:
I ended up with a stack of folded signatures:
Which I then compacted with the bone folder (this turns out to be a key step: it’s what takes “ragtag collection of folded pieces of paper” and turns them into something book-like):
Next, I pulled two pieces of Japanese paper out of my paper closet and cut them to size (4-1/4 by 5-1/2 inches) to go at the start and end of the book:
The finished product, before gluing, looked like this:
With the book ready for glue, I clamped everything together with a binder clip; this is so helpful in keeping everything in alignment, and this kind of binder clip is much easier to manage than the more common “black with silver parts that fold back” kind, especially when it comes to removing it:
I slipped the clamped signatures into a book press (a piece of equipment helpfully left in my office by the previous occupants), and then clamp the whole thing tight in the press, while gingerly removing the binder clip:
I then used a cheap paintbrush to spread a thin layer of regular old white glue (I used Aleene’s Original Tacky Glue, but I imagine any brand would do) along the edge of the book:
The brush is very useful for creating a really smooth layer of glue. I repeated this process again once the first layer of glue dried (this may not be technically required, but it afforded me some gluing-piece-of-mind):
Preparing the Cover
While waiting for the glue to dry, I took a piece of letter-sized purple card stock and trimmed it down to 5-1/2 by 11 inches, and then scored it 4-1/4 inches in:
I then added a second score, using the glued book block as a guide to the location. The result was a front cover, spine, and back cover; I left the back cover to trim after the cover-gluing:
Gluing the Cover
I spread a layer of glue along the spine of the book block, put the cover in place, and then clamped the result into the book press (not so much for the pressure as to have it clamped in place so I could apply some pressure to the spine of the book with my thumb to remove glue bubbles):
Trimming the Cover
Once the spine had dried, I removed it from the book press and, using a straight edge as a guide (an excellent tip I picked up from a YouTube bookbinding video), I trimmed the back cover:
The Finished Book
The finished book looks remarkably book-like:
- A bit more detail (Randy MacDonald)
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