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mtaylor

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Posts posted by mtaylor

  1. 10 hours ago, Mike Y said:

    Great move for international readers, where shipping + custom fees double the cost of a book! 

    Just one things to consider (not a critique, but a food for thought). What happens with the purchase when Kotobee goes bankrupt and closes the library? That is a common problem with various connected devices and online resources, in 10 years a big share of them are just gone together with all your content. It's fine for a book that is being read once, might be a bummer if you use it for a reference or just enjoy building up a collection.

    Fully understand that there is no good solution here, anything downloadable will end up on torrents the day after... 

    That's one of my concerns.  I'm assuming this can installed on a computer instead of smartphone (I would hope).   So can the books be printed out on home printer?   

     

    I'm concerned about the "backup" and access to the data  as since the dark ages of the web I've seen too many companies that did thing like photo "storage" disappeared without warning and everyone who had data/photos there was up creek.

  2. I think yours has the most "wow" power probably the size allowing for detail and all the details being added.   

     

    Just a thought herer.  I give some though to securing the island to the deck and anything else to the hull.  Consider if nothing maybe using some pins.  I've seen too many RC boats over the years roll over or flood for some reason and sink.  I'd hate to read where something happened and things fell off.

  3. 16 hours ago, Kranck said:

    Do you feel that this Paulimot is better than the Unimat ? 

    Easier to maintain maybe? 

    Wondering about buying one...

    Looks like any number of machines that come out of China.  They do need some tweeking.   Have a look at LittleMachineshop guide on small lathes (attached below).   They also have a variety of documents in their learning center.

    Document - MiniLatheUsersGuide.pdfMiniLatheUsersGuide.pdf 

    Learning center main page for documents: https://www.littlemachineshop.com/Products/product_new.php

     

    This is also a good link for info

    https://www.mini-lathe.com/ 

  4. 18 hours ago, Dr PR said:

    Johnny's story abut the magnesium wheel brought to mind an experience I had.

     

    I was a Nuclear Weapons Officer in the Navy, and we worked with missiles with all kinds of nasty stuff in them - including magnesium. So the Navy sent me to many fire fighting schools. One was a flight deck firefighting school where we learned to do all sorts of impossible things.

     

    In one class they set off an aircraft flare (magnesium and an oxidizer) and told us to put it out with water. When an old salt Chief says to put it out, you put it out! We ran a high pressure water hose nozzle up the tail end and flooded it with so much water that the steam carried away the heat faster than it was being generated and it went out! Then they set an aircraft magnesium wheel on fire and we proceeded to put it out with water from several fire hoses!! Only a small spot on the wheel was burning but the heat spread through the entire mass. The entire wheel surface was flooded with water to carry away heat and eventually the fire went out.

    The Marines taught us to use Purple K.  The catch is... it burns and the residue smothers the flames.  But, if someone hit it with water while it the metal was glowing it break the shell of the residue and the fire would re-erupt.  Oh... and PPK gave off very nasty flames we were told.

  5. On 1/22/2023 at 5:03 AM, David W said:

    Here's The Important Reason We Don't Get Mad Chemistry Kits For ...As a kid we played with an AC Gilbert Chemistry Set. You could poison your sister, blow up your teacher or *gasp* play alchemist. We all had some version of this set. All we as kids did was to make gunpowder which only burned since none of us realized that it needed a confined area of some sort. Then the rich kid learned how to use other chemicals and make things go bang.

     

    As to suit and tie - until my long term company went business casual about 1995, we were required to dress properly

     

    They also made one that had some radioactive chemicals. I wanted one but my gave me very emphatic "NO". 

     

     

    On 1/22/2023 at 6:22 AM, Snug Harbor Johnny said:

      We also didn't know that commercially made gunpowder mixes finely powdered ingredients in a slurry that is milled long enough to intimately incorporate them on a molecular level ... which after drying and granulating produces a powder that will 'flash' - ergo explode - without containment.  The stuff we made dry with mortar and pestle was far less effective ... didn't stop us from experimenting.  The local hobby store sold refills for chem sets, and the most popular ingredients were ... potassium nitrate, surfer and charcoal.

     

    We tried making and succeeding in making nitroglycerin in high school.  The stuff worked and still surprised we didn't blow ourselves to smithereens.  I still can't believe some of the stuff we got away with back then.

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