She remembers the August nights of her childhood, when streaks of light from the annual Perseid meteor shower would rush across the sky.
Her family came from Hamilton, Ont., and its streetlights, but summer trips to Muskoka provided darkness, and a view of space.
Her father showed her meteors. Not even the mosquitoes could dull her enjoyment.
카지노 게임 컬렉션In the city, if it was a clear night I would walk in the evening,카지노 게임 컬렉션 she recalls. 카지노 게임 컬렉션Even in winter, with my head looking up 카지노 게임 컬렉션 to the point where you did have to worry about me brushing into things.카지노 게임 컬렉션
Sarah Sadavoy still looks up. She has never seen a total eclipse of the sun, but April 8 will bring one to her in Kingston.
And what an eclipse it will be.
Darkening skies in Mexico, the U.S., and, later, Canada, the 카지노 게임 컬렉션Great North American Eclipse카지노 게임 컬렉션 has sparked plans for parties and festivals, hotel packages, and even a rodeo. At Queen카지노 게임 컬렉션s, there will be special lectures, events, and collaborations across various faculties and research areas beyond astronomy. All for what the Canadian Space Agency is calling a 카지노 게임 컬렉션spectacular and rare celestial event.카지노 게임 컬렉션
The solar eclipse카지노 게임 컬렉션s path of totality in Canada will pass over Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland 카지노 게임 컬렉션 and everywhere people in funny glasses will lift their gaze to try to catch a rare moment of astronomical perfection.
But why? Why are we so fascinated by eclipses, and what can they teach us about our world 카지노 게임 컬렉션 and worlds beyond?
These are questions Dr. Sadavoy has often contemplated.
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Dr. Sarah Sadavoy
As an astronomer, she usually looks at parts of space so far off we have trouble comprehending the distance. On eclipse day, she will be looking at Earth카지노 게임 컬렉션s own neighbourhood, our own solar system.
It still holds mysteries.
Dr. Sadavoy, an assistant professor in the Department of Physics, Engineering Physics, and Astronomy, studies how stars and planets form, research that carries her into the cold, dusty regions between existing stars 카지노 게임 컬렉션 places called stellar nurseries. The unknown draws her in.
카지노 게임 컬렉션I카지노 게임 컬렉션ve always enjoyed the idea of seeing the unseen, or the unseeable,카지노 게임 컬렉션 she says. Ordinary light doesn카지노 게임 컬렉션t show much in these regions, so the astronomer has to tease out images with other kinds of telescopes.
카지노 게임 컬렉션I love a mystery. I love being able to solve a puzzle with just some of the pieces in place.카지노 게임 컬렉션
And the sun?
카지노 게임 컬렉션There카지노 게임 컬렉션s a lot that we don카지노 게임 컬렉션t actually know about the sun, and the sun is our best proxy to understand other stars. The sun is close enough to us: we can send satellites to it that monitor it; we can watch activity on the sun, and changes in the sun.카지노 게임 컬렉션
These include violent happenings such as explosive bursts that hurl vast discharges of charged particles into space, sometimes disrupting communications on Earth and other times producing a beautiful aurora.
But satellites don카지노 게임 컬렉션t tell the whole story.
카지노 게임 컬렉션Solar eclipses let us see a side of the sun that we don카지노 게임 컬렉션t always have the opportunity to see, which is [its] outer atmosphere,카지노 게임 컬렉션 she says.
The sun itself will be covered up by the moon on April 8. But its outer atmosphere will be in plain view.
Scientists can study the properties of this corona, but also study how it changes from one eclipse to the next, 카지노 게임 컬렉션because the corona itself is not constant. It changes.카지노 게임 컬렉션
카지노 게임 컬렉션These are snapshots in time, and we카지노 게임 컬렉션re able to put this very complicated puzzle together.카지노 게임 컬렉션
The story of eclipses is the story of human science itself.
The history of trying to understand how eclipses happen goes hand in hand with some of the earliest known discoveries in astronomy in Babylon nearly 2,000 years BCE.
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Dr. Daryn Lehoux
By the first millennium BCE, 카지노 게임 컬렉션[people] start realizing that there카지노 게임 컬렉션s a cyclicality to these things,카지노 게임 컬렉션 says Dr. Daryn Lehoux, who specializes in ancient sciences and the history and philosophy of science at Queen카지노 게임 컬렉션s.
Long before computers, the Babylonians realized that lunar eclipses follow a pattern. They saw that lunar eclipses occur in a rigid cycle of 18 years, 11 days, and eight hours: each eclipse will follow the same pattern as the one 18 years earlier. True then, true now.
카지노 게임 컬렉션Once you get that 18-year cycle down, that카지노 게임 컬렉션s a really powerful moment in the history of astronomy. Because you suddenly have mathematical control over eclipses. You can predict them,카지노 게임 컬렉션 says Dr. Lehoux.
He calls these Babylonian texts 카지노 게임 컬렉션one of these stunning mysteries in history카지노 게임 컬렉션 카지노 게임 컬렉션 early scientists who left their observations, but with no explanation of how they worked it out. We don카지노 게임 컬렉션t know the extent of their mathematical knowledge.
Later came the Greek scientists, with a cosmology 카지노 게임 컬렉션 Earth a sphere at the centre, and sun, moon, stars, and planets revolving around us. And the Greeks brought new mathematical tools.
카지노 게임 컬렉션The Greeks introduce trigonometry in the second century BCE largely to deal with problems of astronomical observation,카지노 게임 컬렉션 he says.
There카지노 게임 컬렉션s even a mysterious Greek device called the Antikythera mechanism, found somewhat broken in an ancient shipwreck in the Mediterranean, with gears and dials that appear to describe motions of our solar system. One of its faces computes the 18-year lunar eclipse cycle, with a separate dial to factor in the extra eight hours.
카지노 게임 컬렉션It카지노 게임 컬렉션s stunning because there카지노 게임 컬렉션s nothing that complex for another 1,400 years,카지노 게임 컬렉션 Dr. Lehoux says. That카지노 게임 컬렉션s when later Europeans developed mechanical clocks that can both tell the time and show the positions of all the visible planets. 카지노 게임 컬렉션They카지노 게임 컬렉션re really more complex than what we have hanging on our walls 카지노 게임 컬렉션 The gearing is just unbelievable 카지노 게임 컬렉션 [Mechanical clocks] seem to just emerge almost out of a vacuum카지노 게임 컬렉션 in the 14th century 카지노 게임 컬렉션 unless someone actually kept the ancient Greek Antikythera tradition alive for all those centuries.
He believes early astronomy, including eclipse studies, is a major foundation of all modern science because its mathematical nature 카지노 게임 컬렉션really provides a motivation for pursuing more and more systematized kinds of knowledge.
카지노 게임 컬렉션And eclipse records give us a whole lot of refinement in astronomy, because the farther back you can look at 카지노 게임 컬렉션 eclipse records, the more accurate you can be.카지노 게임 컬렉션
Dr. Sadavoy can카지노 게임 컬렉션t think of an ancient civilization that ignored eclipses.
카지노 게임 컬렉션There is widespread notice of eclipses all over the [ancient] world. It was a big deal and they made records everywhere 카지노 게임 컬렉션 The Mayans were phenomenal for this, and their records show that they absolutely watched the sky. They were very active in watching the sun, the moon, and Venus. They definitely knew when eclipses were going to happen,카지노 게임 컬렉션 she says.
The 18-year lunar eclipse cycle appears in Mayan records as well 카지노 게임 컬렉션 thousands of kilometres from where the Babylonians found the same pattern.
On eclipse day, Dr. Sadavoy and her students will be somewhere outdoors as 카지노 게임 컬렉션eclipse ambassadors카지노 게임 컬렉션 from Queen카지노 게임 컬렉션s, helping the public get a safe look at the show. Queen's and the Royal Military College of Canada have bought 150,000 pairs of solar glasses and hand-held viewers so that everyone in the city can have a look. is also making plans for outreach.
카지노 게임 컬렉션What I카지노 게임 컬렉션m picturing is myself and a crowd of people I카지노 게임 컬렉션ve never met before enjoying an eclipse together,카지노 게임 컬렉션 she says. 카지노 게임 컬렉션This is the first time an eclipse is coming to me and I카지노 게임 컬렉션m super excited for it. I have seen partial eclipses, but I카지노 게임 컬렉션ve never seen a total eclipse.카지노 게임 컬렉션
Can카지노 게임 컬렉션t look up safely? Dr. Sadavoy suggests looking down instead to see the sunlight coming through a tiny hole and making an image of the sun on the ground.
카지노 게임 컬렉션You don카지노 게임 컬렉션t even need fancy equipment. You can grab a colander [and watch the light shining through its holes]. You can make a pinhole projector [paper with a tiny hole]. And you will see the shape of a crescent sun, which looks different from a crescent moon.카지노 게임 컬렉션
카지노 게임 컬렉션You can live an entire lifetime and never see a solar eclipse, or at least a full one,카지노 게임 컬렉션 says Dr. Lehoux. He was surprised by his last, a partial eclipse in 2017, as he was canoeing in Algonquin Park, when people nearby started looking up and pointing. He used a hole in his hat to project the image of a crescent sun on the bottom of his canoe.
카지노 게임 컬렉션To have [daylight] kind of go away for an hour in the middle of the day 카지노 게임 컬렉션 it카지노 게임 컬렉션s dramatic, it카지노 게임 컬렉션s weird, it카지노 게임 컬렉션s neat, it카지노 게임 컬렉션s interesting, it카지노 게임 컬렉션s alarming, it카지노 게임 컬렉션s all kinds of things,카지노 게임 컬렉션 he says. 카지노 게임 컬렉션The whole campus is excited by the fact that we카지노 게임 컬렉션re going to get totality. And Kingston has got a long tradition of alumni coming back for Homecoming. I think this is going to be a really interesting event.
카지노 게임 컬렉션And that it카지노 게임 컬렉션s happening on the last day of classes 카지노 게임 컬렉션 it카지노 게임 컬렉션s extra fun.카지노 게임 컬렉션
Want to learn more about the eclipse? Get info about events and activities, safety, accessibility resources, and more on a special site by the Department of Physics, Engineering Physics, and Astronomy.