How about we settle this, just you and me—logarithms at ten paces. Now, I’m for peace as much as the next fellow, but it’s always seemed to me a clear lesson of history that unilateral disarmament in the face of aggressive tyranny is not the way to peace. Maybe it’s one of those slippery concepts which an understanding of feedback systems and differential equations helps one to grasp more firmly than an encyclopedic knowledge of the works of nineteenth century political theorists. Why, that’s only a quarter to a third of a pound per square inch overpressure—it’ll probably break some window glass but that’s about it. Collectible Computer Back in those psychedelic days of yore, you could order your own fantastic pastel plastic nuclear bomb effects computer directly from the U. Government Printing Office for a single green dollar, and for three dollars more, obtain the authoritative page book, The Effects of Nuclear Weapons , upon which it was based. With the winding down of the nuclear arms race and eventual end of the Cold War, interest in the actual consequences of setting off nuclear weapons waned. The book and computer were last updated in , and subsequently went out of print.
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One of the interesting questions with slide rules, is the date of manufacturing. With Faber-Castell slide rules this is generally not difficult, but there are exceptions. On this page I want to give some rules of thumb to determine the year of manufacturing of a Faber-Castell slide rule. Date stamp on the back Most Faber-Castell slide rules have on the back 2 embossed stamps that give the year and month of manufacturing.
Mostly the left number gives the year, the right number the month.
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Hemmi was granted Japanese patent in for laminated bamboo construction and success seems to have followed quickly thereafter. One can estimate dates of Hemmi slide rules from markings on the rules. I have not been able to narrow the date. Rules with model numbers date from before this changeover, rules with model numbers 20 and above were made after the changeover.
Hemmi continued offering models 1, 5 and 8 to its distributors until WWII or later; these rules occasionally turn up with Post or Hughes-Owens model numbers but no Hemmi model number. The company name was officially changed from “J. Hemmi was incorporated as a public corporation with no change in name.
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By Miriam Wasser Friday, February 26, at 1: In some ways, these mutually beneficial relationships are like traditional romantic relationships, but in other ways, they’re quite different. Victoria, a University of Arizona student with three sugar daddies, lays out what it takes to be a good sugar baby and have a successful sugar-dating experience: Don’t talk about relationships outside your arrangement because you will get hurt.
Not Your Mother’s Rules: The New Secrets for Dating (The Rules) [Ellen Fein, Sherrie Schneider] on *FREE* shipping on qualifying offers. How long should I wait to respond to his text message? Can I friend him on Facebook? Why did he ask for my number but never call me? When The Rules was published in
It can also be a dangerous distraction that interferes with communication rather than facilitating it. The line between the two is thin. Over the course of my career, I have sat through hundreds of presentations. Most of them were done with PowerPoint. Most of them are done poorly. I often think the presenter would be more compelling if he would ditch the presentation software and just speak. But alas, It has become a staple of corporate life.
It is the ubiquitous prop that attends every presentation. Here are my five rules for making more effective presentations.
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Well-known for their “eye-saver” yellow surfaces see below , Pickett was a popular favourite among American slide rule users. They featured an impressive range of specialized rules for a variety of applications more than any other maker I can think of , along with teaching and student rules. Naturally, they also made a huge number of entry-level plastic rules, especially toward the end of their production run. Often, these can still be found as “new old stock” still today, illustrating their overly-effective mass production efforts.
They also aggressively pushed their demonstration rules in US schools, helping to insure a substantial user base among later professionals.
Legal Stuff How the Slide Rule got its Cursor The iconic slide rule, long identified with the science and engineering professions before the advent of the electronic calculator, had two sliding components that set it apart from an ordinary rule: This configuration was so standard and universal in the 20th century, that few of the countless engineers who used it could imagine any other; and yet for most of its years the slide rule had no cursor at all, and when it got one, it looked quite different A standard slide rule, as depicted in a college textbook from The evolution of the standard straight slide rule, or slipstick as it was nicknamed in its heyday, is an interesting one to follow because the same basic principle evolves through a sequence of progressively more effective designs, culminating in the familiar form that had helped put a man on the moon in the sixties.
As a collector interested in the evolution of technology in time, I made an effort to acquire one representative of each stage in this evolution, and have finally secured all but the very earliest for items pre-dating the 19th century, rarity and price do conspire against the collector! Origins The first logarithmic calculating rules did not slide at all This ” Gunter’s Rule ” was the original device introduced by Edmund Gunter in , which remained in use for some two centuries.
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Print Between the abacus and the computer came the slide rule The diversity of slide rules, the analogue predecessors of digital computers, is celebrated through the newest exhibit at The National Museum of Computing TNMOC at Bletchley Park. Curated by the UK Slide Rule Circle UKSRC , the display of more than 40 British slide rules spans three centuries and shows the variety of shapes, sizes, materials, and purposes of this sophisticated calculating device.
Invented in the s, soon after the publication of the concept of the logarithm, slide rules were in use right up to the s. Their decline began in the s with the advent of electronic computers and calculators. One or perhaps two would be used throughout a career. They are marvellous pieces of engineering and craftsmanship and the display at The National Museum of Computing pays tribute to slide rule designers and users across the centuries.
Two months ago, I was dating a guy for like a month and he was after me like crazy. At the time, I thought he and I wouldn’t work out, so I rejected him. We had some turmoil in between and I thought I wouldn’t hear from him again. Then he initiated contact saying that he’s happy we are still.
They also made a large range of drafting and related products, and even had offices here in Montreal. Their rules featured mahogany cores with celluloid facings, and have one of the nicest “feels” among slide rules, if you know what I mean. Their high quality leather cases are also among the best, and were frequently imitated. Over the course of production, they carried an extensive range of slide rule models, although they frequently changed their model numbering schemes in the last couple of decades of slide rule production, confusing matters considerably for collectors.
They eventually switched to all-plastic models, but continued their tradition for innovation in layout and scale design right up to the bitter end. Unfortunately they didn’t survive intact, but their final assets were eventually acquired by the reproduction paper and film company Azon, which also bought out what was left of the Frederick Post and Hughes Owens companies. Where available, I’ve listed model variants in chronological order on this page.
Like the more advanced series, this model also goes back a long way and underwent a number of design modifications over the years. This representative example from my collection is a fairly late model built, with an all-plastic spring-mounted cursor and mid-century table of equivalents on the back. Made apparently of light-weight pressed wood, this model has a simple white-painted face with printed monotone scales, very reminiscent of the inexpensive Lawrence Engineering rules.
I’ve also included a scan of a manual for this model rule, taken from the same time period final copyright date This Beginners rule is just that Made of celluloid on mahogany, they feature an excellent and extensive scale arrangement. As one fellow enthusiast noted, Pickett’s may have gone to the moon, but these are the slide rules that probably built the bomb!
British Thornton Slide Rule
Guest Contributor July 2, Last updated: This is a guest post from Stratton Lawrence. So, if you build one of these, the risk is entirely yours. If you drink while doing this, you will almost certainly get hurt.
International Slide Rule Museum/Library/Encyclopedia. COVER: DESCRIPTION: ELECTRONIC FILES: M Ref: ISRM Instructions donated, with slide rule, by.
It use to always be that your parents would arrange dates for you. You would meet and talk with them for what could be just a couple of times, and then get married. People of Indian upbringing can be set in the traditional ways of their ancestors. Indian teens will go out with a group of friends, which will include both males and females, and let the group help them get to know someone over time of whom they might take a liking to. Here it is very common for a boy to pick up a girl at her house and then go on a date.
But in India that would not happen. The single life is easier for men than women. They have continuing problems financially, little social support from family or friends, vast barriers in dating and remarriage, and experience loneliness as a result. As for how many people in India are single? Balakrishnan,Deepak Verma and B.
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Posted on January by mathscinotes Quote of the Day Too often man handles life as he does the bad weather. He whiles away the time as he waits for it to stop. Typical student slide rule from the s.
Pickett NT – Cleveland Institute of Electronics. One of Pickett’s more common specialty slide rules. Pickett made a large number of special purpose rules, including this aluminum Electronic’s technician model for the Cleveland Institute of Electronics, of Cleveland, Ohio.
When he was pursuing you, you felt like you had control and could choose whether or not you wanted him around. At that time, you chose to reject him. You came back together and over time, things changed. In other words, he learned how to act if he wants to get rejected by you and he learned how to act if he wants you to chase him. If I were in his position, I would continue acting in the way that has you chasing. I mean, think about it. He tried it one way, it probably felt terrible to him and ultimately got him rejected.
So based on that experience, he would probably make a conscious, willful effort not to get back into that position with you again. Everyone resents being deliberately manipulated.
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Alex / Unsplash. If you thought the world of ghosting, stashing, and sidebarring was bad, things are about to get worse.. Modern dating is tough, and sometimes it can feel like everyone else has a.
This week, the app went live in the App Store, giving us our first real look at how the product works. Within settings, you can see that discovery preferences are just like Tinder, with a slider for age and options to search men, women, or both. Users have no control over distance with matches being served closest to farthest away. That feature likely has to do with offering as many matches as possible while seeding the app to enough users for distance settings to make a difference.
But there is only one significant thing that separates Bumble from Tinder: On Bumble, girls hold all the power. Boys are not allowed to send the first message on Bumble. Girls must initiate the conversation with their matches, or else they disappear after 24 hours. The only control the guy has in the situation is the ability to extend one match each day for an extra 24 hours, whispering a Hail Mary prayer that the chosen girl will throw them a bone and send a message.
The power play on the female side of the app makes sense. Wolfe understands better than most that no dating app works without women who are active and engaged on the platform.