11/9/2022 0 Comments Toronto take that mirror down![]() Depending on the cleanliness of the air, a mirror coating lasts anything from 6 months up to many years, and will eventually need recoating. ![]() The cost of this feature is that the reflective surface (usually aluminium – silver is hardly ever used anymore because of the dangerous chemical processes needed to apply it) is exposed to the corrosive effects of air pollution. Cammy and Insight led the way for Toronto, posting 1.21 and 1.29 K/Ds, respectively. Because the optical performance is so sensitive to the accuracy of the curve, telescope mirrors are silvered on the front of the glass to avoid the extra distortion and internal reflections that you get in regular mirrors. The Ultra’s 4-1 record also secures first place in Stage Four Group B. Unlike a shaving mirror, the curve is also extremely precise - accurate to a a few millionths of a millimeter. The curve is very subtle, similar to a shaving mirror, in that the actual curvature is hard to see, but the magnifying effect is obvious. Most astronomical telescopes (and almost all home-made ones) use curved mirrors to bring light to a focus, instead of lenses. What does all this have to do with astronomy? Well we can talk a bit more about mirrors. ![]() Fun fact: This happens somewhere on Earth many times every single second! Meanwhile, all that superheated air has expanded violently, in a loud explosion which we hear as thunder. Once all that energy has been dumped to Earth, there’s nothing to sustain the electric field, the current stops flowing, and the lightning bolt disapears. For the brief moment that the current is flowing, what we have is a lightning bolt which is basically air heated so much that it acts like a wire in an electric circuit. Within microseconds, the amount of energy passing through that path heats the air so much that it begins glowing – not red hot, or even white hot, but ultraviolet hot. Once current begins flowing down this path, the air in that path gets hotter and ionises even more, which lets more current flow to make the air even hotter and more ionised. As that field gets stronger, the air begins to ionise until there are enough ions to provide a path for the electricity to discharge. As the charge builds, it creates an electrical field between the cloud and the ground. Not everything coming our way in a fifth wave can be laid at the feet of the Omicron variant, but it doesn’t help.Īs always, a vaccine is your best bet for protection.When large turbulent clouds form, they build up a powerful electric charge through a mechanism that’s only partly understood, although the general principle is the same as when you make static electricity by rubbing a balloon with wool. “Watch me close the stable door,” Elliott might as well have said, “Right after the horse has bolted.” Rush Lane Also known as Graffiti Ally, this back-street stretch is bursting with urban expression. TORONTO TAKE THAT MIRROR DOWN CODE4, only the certificate with a QR code will be acceptable as proof of vaccination … right after all the Christmas and New Year’s gatherings are finished. Put that in your delicatessen and smoke it. Strengthening vaccine certificates is one item the Minister of Health did cover during Friday’s announcements as of Jan. ![]() Stall also listed, “strengthening vaccine certificates and mandates, combatting anti-vaccine and anti-science misinformation and disinformation, and increasing access to rapid testing.” Further delays will cause preventable death, suffering and economic loss. All adults need to be able to get 3rd doses now, not in January. The measures announced yesterday are too little, too late. #COVID19 is surging in Ontario, and Omicron will soon be the dominant variant. “This would involve: accelerating third vaccine doses for all adults who are more than 6 months from their second shots and addressing airborne transmission by improving ventilation and filtration in indoor public settings.” ![]() He reiterated that we have all the tools we need to save lives and prevent further restrictions in Ontario,Īnd, he said, a multilayered approach is urgently needed. Stall said in a statement that in fact we are no longer sleepwalking, “But actively avoiding managing an intensifying surge of COVID-19.” Nathan Stall, geriatrician/clinician-scientist at Sinai Health System and University Health Network in Toronto, said recently on social media that we are sleepwalking into a fifth wave.Īsked to elaborate, Dr. Get a better mask, while you’re at it: a KN95, maybe.Īs for vaccination, anyone on the fence about mRNA vaccines (Pfizer or Moderna) can now get the Johnson & Johnson one-shot, old fashioned, viral-vector vaccine in Ontario.ĭr. There are dozens of respected doctors, nurses and scientists sounding the alarm in Ontario, and the message is straightforward: get vaccinated, get your kids vaccinated, get a booster, avoid crowds and put your mask back on. This advertisement has not loaded yet, but your article continues below.
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