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Really_Bad_At_Names, Good at Science
@25_cycle
Hard sciences & cold data. Engineer, outdoorsman, birder, nerd, basically optimistic, human rights advocate. Winter owls & waterfowl! techhub.social/@25_Cycle
NYC Burbsevidence-basedscience.comJoined February 2020

Really_Bad_At_Names, Good at Science’s Tweets

#COVIDIOTS Guess he didn't read the article... "There also was evidence that the virus destroyed the cells lining the bronchial tubes, including cells with protective hair-like projections, or cilia." "the virus landed the first blow while bacteria delivered the knockout punch."
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Replying to @25_cycle @JCDash4 and @vgclements1
And during the Spanish flu, most people actually died of bacterial pneumonia… caused by natural occurring flora.. nih.gov/news-events/ne
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It's good to see the new flood control measures on the Empire State Trail in Macy Park (Ardsley) have succeeded, the trail is completely impassable because of the flood. It's the first time I've ever had to turn back.
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Religious fanatic thinks his private schools in Kenya are better than Bronx High School of Science... I didn't go to Bronx Sci because I couldn't afford private school, I went there because it's the greatest school on earth.
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Replying to @25_cycle @Velvetpage and @KristanHawkins
Of course if you can't afford it, you wouldn't think you needed a private education. I just don't understand how even after being in such a secondary school, you still reason like this - there seems to be little more that can be done to help your thinking process.
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This is a very critical topic in science, the modern world, and sadly even more in human history. More people have been killed in the name of religion than anything else. Because if you can justify anything in God's name then you can justify anything you do in God's name.
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Replying to @25_cycle @Velvetpage and @KristanHawkins
How can you possibly reason in such a defunct manner? If human beings die from natural causes, is that an excuse for us to kill them ? (Because they'll die anyway)
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#ClimateBrawl There's the old line in courtroom dramas where the attorney says"I never ask a question I don't already know the answer to." His chart is not based on any paleoclimate data, just guesstimates. He doesn't know that, I do. Ignorant science deniers can't cite sources.
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Replying to @25_cycle @TWTThisIsNow and 2 others
Look at the fine print on all the charts…it’s sourced…but good for you for not looking
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I hope you've enjoyed this, thanks for your time! Now the fun part - I learned about this nearly 30 years ago, there really hasn't been much "new" tech involved, except they keep reducing wall thickness, which is exactly why they dent so easily! Which is where I started. 13/13
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Over a freshly inked plate & then carefully dried & sealed using a thin coating. The cost of painting a can is less than applying a label, but it needs much higher volumes to be cost effective. (It's a fraction of a cent.) Soda cans are generally thinner walled... 11/13
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Changed my mind: Bonus section. If it's a soda can, the original "cup" is much more complicated- instead of simply ironed a concave "punt" is shaped into the bottom for extra strength, allowing pressurized soda to remain safely in the can. The can is painted by rolling it- 10/13
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The edges are "rolled"& then neatly folded together, then pressed into a perfect seal. Any sharp edges are in the inside seam where they can't harm the customer. All of this takes seconds! They make tens of thousands of cans an hour, the punches can last a few months. 9/13
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With some cans you need a mechanical can opener; now most cans are scored & a pull tab is made by the punch, all from one piece of metal. Not all cans use this, some still have a discreet tab that's "riveted" by the punch. Another punch combines the 2, cat food & all. 8/13
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Food cans are much simpler than soda cans- there's several steps I can skip... The edge of the can is trimmed, the excess metal salvaged. We now have a one piece cup-shaped can suitable for long-term food storage. The lid is formed by another die, which is very complex. 7/13
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They've perfected the process over decades (since 1958)-they've tried many different blank shapes, hexagons give the best performance and waste the least metal. Once the piece is cut, it is pushed at very high pressure ("drawn") through the die & the walls shrink ("ironed") 6/13
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Modern punch presses are gargantuan machines that stamp out huge pieces of metal (think convoluted car body parts) In this case, it's only a small 10cm can. It's a multi-stage process; I'll start with the sheet aluminum. The die first cuts the sheet into a hexagonal "blank" 5/13
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These can do more than 1 job & we use compound dies to "blank" the metal or securing the lid but never mind. A ”die” is a (generally) metal form used to hold a material that undergoing a stamping or extrusion process. The material worked in this case is an aluminum can. 3/13
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My first impulse was "great, now I have to tell people how we manufacture cans." First step: I have to introduce the concept of a punch and die. I'm only going to describe simple systems here, there are compound punches that change shape in the middle of the process. 2/13
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#ClimateBrawl I have yet to meet anyone in the climate science community that "disbelieved" the two Exxon 1978 and 1982 teams. They did brilliantly at validating AGW. I assume that means you agree with them completely.
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The double standard is remarkable. Believe the scientists that worked for Exxon in the 70s and may have said something about warming but discredit them if they disagree with you because they work for fossil fuel companies. You can't haven't both ways. twitter.com/Syncretiphile/…
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#ClimateBrawl Steve at junk-for-brains Thinks the increase from 310 to 360 is 167%. Why is Steve so mathematically illiterate? And in case he takes it down, here's a screenshot.
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33 years ago today in climate lying... the Associated Press prints deceptive graph that actually illustrates CO2 warming is a hoax: No warming from 1940-1980 despite manmade atmospheric CO2 increasing 167% (from 310 ppm to 360 pm). newspapers.com/image/79313737
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This was very simplified, more an intro than a full explainer; if you have any questions or comments, please feel free. So thanks for your, I hope I've helped reduce wind power anxiety and helped people understand why onshore wind is the cheapest energy currently available. 17/17
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Nuclear has it's own issues, mostly dealing with the need for redundancy and waste heat streams/ nuclear is very expensive, there's a future here if it can be made cheaper and more reliably. Solar PV has one moving part, electrons. (Okay, they have directional panels...) 16/17
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"Pumped Hydro" or "gravity storage" has been used to store energy since the 1890s. It's a low tech solution, easily scaled, can use existing infrastructure or easily added. There's a constellation of energy storage technologies available they don't have to be lithium only. 15/17
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