Bullet Points:

** The Telegraph reported Israel will use novel sponge bombs as it fights through the network of [Palestinian] tunnels under Gaza. The Israel Defense Forces has been testing the chemical bombs, which contain no explosives but are used to seal off gaps or tunnel entrances from which fighters may emerge.

These “sticky sponge bombs” are not new. USGOV experimented with them forty years ago in the contest of “less lethal” crowd control. It’s a way of sealing a tunnel (and tunnel vents) without using explosives. The foam comes in configurations. In some chemical options, it hardens like concrete. In others, it’s so sticky that the foam adheres to your skin if exposed, and you need a chemical “antidote” to remove it. Israel may layer these options so you break through the concrete layer with picks, shovels, and shaped charges only to find thirty feet of toxic spongy goo. Then more concrete sponge.

** Zero Hedge reported, The IDF has entered a full ground assault phase of their operation as heavy aerial bombardment continues. But Israeli officials in the last hours have dubbed this another expanded raid. However you characterize it, they’re mopping up the surface resistance to the extent possible before sending in the infantry and engineers to do the detail work.

** Jules adds a sparkle to life.

** When does Congress plan to release all of the January 6 videos?

** In 2002, Anthony Harris, along with a team of scholars from the University of Massachusetts and Harvard, published their landmark research in the journal Homicide Studies. They concluded that advances in medical technology between 1960 and 1999 cut the reported murder rate to a third—and in some instances, even to a quarter—of what it would have been otherwise. The leaps and bounds of lifesaving technology that have emerged in the decades since have had a similar impact on the ability of first responders, medical professionals, and even everyday citizens to save the lives of victims of violence, thus preventing ever more murders.

 

 

From the Days of Fighting Sail

Mariner’s compass

By the late sixteenth century, the mariner’s compass had evolved into an instrument not very different from the compass of today. The case in which the compass itself is housed was made of wood or ivory in the early days. After that, brass came into use since it does not affect the magnetic needle.

The Pole Star (Polaris) served as the seaman’s lodestar (or star that shows the way). Therefore the magnetic stone that was used to magnetize the compass needle was called a lodestone. The magnetic, direction-finding property of the lodestone had been discovered in China as early as the twelfth century.

By the sixteenth century, the mariner’s compass was made with a soft iron wire bent to a lozenge shape and attached to the underside of a circular compass card, which was suspended at the center on an upright needle.

Image

Because the iron wire tended to lose its magnetism over a period of time, it was necessary for each ship to carry a good lodestone to re-magnetize the wire when it weakened.

There was one basic problem encountered in the use of the mariner’s compass: The magnetized wire in the compass was drawn by large land masses. This caused the compass to have variations in its readings. The mariners and mathematicians of this early period were concerned about this problem, and a number of corrective measures were tried. However, at the time the Mayflower sailed in 1620, the problem had not been satisfactorily solved.

Image

Mariner’s Compass 1570

In order to familiarize the pupils with the principles of the lodestone or the magnetized needle, the teacher may wish to conduct some classroom experiments. Using either a lodestone or a good, strong magnet, rub one end of a small, steel sewing needle repeatedly — moving it against the needle in the same direction with each stroke. After the needle is magnetized, set it gently in a saucer or bowl of water and watch it align itself in the north-south position.

Once the needle is functioning in its north-south alignment, try moving iron or steel objects around the bowl to show how land masses would have caused a variation in the compass reading.

 

Identify the Aircraft

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From EdB

30 COMMENTS

  1. Gee, I wonder why The Husk Varnished EO’d Keystone on day 1 with a stroke of his corrupt pen, then twice crippled our Reserves? Then add 20 million mostly young men of various origins across the Southern Border. Then print a pile of money for another country while our own languishes. Then – by the backdoor – fund enemies of our ally while working – out loud no less – to hamstring their retaliation of a despicable unprovoked attack, “please wait”. (What the hell for? Some one murders my family and I would not rest until I hunted them down and sent to God for judgement.)

    Just spitballing here…but all this chaos progression couldn’t be to cripple America while starting wars all over the place in an upcoming election year to distract, keeping “the unwashed” focused on fighting for their livelihoods. Nah, that couldn’t be it.

    Jan 6 et al will never be allowed to see the light of day, people knowing the truth about their criminalized government might just revolt. Can’t have that now, can we?

    Sidebar bine to pick- Pull up todays vlog page….and what pops up on the sidebar slider…a laughing full frontal HRC face. Needed to wash my eyes out with soap to reset the morning. (Heh)

  2. “Life saving technology”; I just heard the rotten cackle berry Kamala on the radio pumping up the Australian 2A success in solving the murder ” crisis”. For once she even mention once that a rise in average temperatures was the cause! She was lethargically reading that “the leading cause of death for children is gun violence”. True? I looked up only 1 report from New England Journal of medicine and found out the fake news is true. Children AND adolescents (13-18) are included in the data. Mixing that age group in is the typical manipulation we see in so many fields of study. PDJT made some head way for the economic opportunities in the hood, as did Catherine Fitts a few decades ago.
    P.S. Addressing the real problems and implementing real solutions to prevent the medical teams patching holes would be nice. I’m tired of hearing the wrecking balls of the Demolition Party steam rolling our economy and society.

  3. Total Sidebar…as I sit here by the woodstove pondering my next move after a hearty breakfast because it’s 14 degrees out and snowy (weatherperson updated the forecast around 5AM to coincide with Gaia laughing as she/her/whatever changed the pattern):

    iPad calendar indicates Nov. 5th as “Daylight Savings Time” switcheroo day. So, for those not residing anywhere else but Arizona, is this “Fall-back” actual normal time, or is it Government Screw With Everyone time…can’t keep it straight anymore.

    Then, and this is new to me – a week later on the 12th is “Diwali”. Had to look it up…something about the Hindu Festival of Light. Hmm, that’s interesting. And here all my life I’ve been missing out. Got to thinking, here in the good ole US of A – in full alignment with one of my personal life truisms/axioms: “the next project you do is the one that requires that next power tool you need” – we should find some 12 year-old to hack all Apple calendars and change the 12th to DeWalti, Fall Festival of Tools as an homage to all those men who fix or build stuff. Mike Rowe would get on board, I’m sure of it.

    And while the kid is at it move it to the 13th as a Toolie day off so we could enjoy DeWalti as a 3-Day weekend.

    Now is that too much to ask? Or is i too white-appropriated misogynistic racist?

    • “the next project you do is the one that requires that next power tool you need” . As I sit looking at my woodstove thinking about what three point wood chipper to buy that sentence hits the nail on the head. As far as tasks, well my day is laid out. Somebody has to hang the track and build a door for the other side of my barn’s sliding doors. In 20 degree weather so much warmer than where you are at. Nice and sunny with not much wind so it really won’t be bad at all.

      • Heh, yeah, really balmy at your place. Well, the sun came out…now I feel guilty for lazing around. A 3-point splitter is a nice implement, split right there and one less engine to maintain. For the newer tractor I went with a hydraulic top link and a quick 3-point hitch, total game changers.

        • Paul I actually have a log splitter with its own gas engine. I need a chipper. During the forest fire this summer I was a few hundred yards from the mandatory evacuation zone so to make my place al little more fire resistant I want to uplift my trees about 10 feet so that will be a LOT of branches that are too small for firewood. Hence the chipper, don’t want to have burn pile after burn pile getting rid of all the branches.

          Have a quick hitch and it sure helps. I don’t have rear hydraulics on my little tractor so no hydraulic top link (insert unhappy sigh here).

  4. Way back when I saw a video of a test of what the scientists called “sticky foam”. Tied the test subject, who was wearing coveralls, in knots. He even stuck to himself and ended up wrapped up in a little ball that could hardly move. Totally helpless and ended up need three people to get unstuck. If what the Israelis are using is anywhere close to that well then it couldn’t happen to a more deserving group of terrorists.

    Jan 6th videos. I could easily be mistaken but I thought I read that a lot of the videos used as evidence in the trials were destroyed. Sure there are copies somewhere but everything would have to be recreated.

    LL, thank you for another interesting article on sea faring. Did not know ships carried lodestones to “recharge” their compasses. I assumed their compasses were just like mine that I have had for 40 years. No recharging required.

  5. Only got about 4″ of snow, and it didn’t stick. Had to shovel the front porch steps, but the Ariens still sleeps.

    Foaming the tunnels to close them is a great idea. I knew there were “riot control” foams and slippery foams, but never knew there were so many other types available.

    • The one thing I miss from my old place was the carport. If I had a dollar for every vehicle I’ve cleaned snow from I wouldn’t need to buy lottery tickets (and, yes, I know; a tax on people who are bad at math).

  6. Yesterday, I was talking to Treniss Evans (https://condemnedusa.com/) about the video.
    It’s a lot of video to sort through.
    But remember what happened to Jacob Chansley after Tucker released the video of him in the capitol.
    Almost a vindication and a quick settlement.
    We believe that as soon as Mike Johnson gets up to speed, there will be a release.
    We live in a country ruled by despotic criminals.
    But we have hope.
    Perhaps the tide is turning.

  7. Ah, the Bearcat. Not bad at all for a plane designed to fly off of shorter escort carriers.

    As to foam, Israel has used expanding foam before to seal tunnels. One of the fun things about expanding foam is that it is exothermic, the more applied the higher the temps produced. And they produce a lot of outgassing.

    I wonder if Israel has ever thought of using some oxygen-removing agent and making the tunnels deadly from lack of O2?

  8. Thanks for the Gaza maps, I might repost. But 5 years for the total op? Sounds long to me, but what do I know.

    On topic, I get the feeling that there won’t be a very sizeable arab population in Israel in the near future. Now, if arab Christians could be rescued from this conflagration I’d be all for it. No one’s talking about that, of course.

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