Tue. Jan 18th, 2022

Glue is usually not the most important thing to me, which is why when my partner, Richard, gave me a beautiful cutting board that he made – hard Eastern maple, shot with the purple veins of African paddock – I thought the trees I had never noticed. Should grow in extremely complex ways. It was only when I heard him and his fellow woodworkers talk about the “glue-up” that I realized that a sticky glue was involved in the wood blend, and this substance is less surprising when we call it by the most used name for Elmer. .

The wood glue — again with a little pomp — has become extroverted. Glue contains names associated with fundamentalism: Mildred Bonnie and Langdon T. Williams, the couple who founded the glue company Franklin International in Columbus, Ohio in 1935, released its flagship product, Tightbond, in 1955. Titebond is a polyvinyl acetate (PVA) adhesive. It swells the fibers of the pieces of wood, so they blend with each other; As the glue dries, the fibers shrink to their normal shape, but they are now so tangled that the bond is virtually unbroken.

Although some Luthiers still use animal glue when they make wired instruments-yes, rendered from behind the beast-most carpenters use PVA, especially Titebond, and especially (Titebond III for projects), all of which inspire Arias to wonder. Woodworking is all over the internet, as it considers itself to be completely waterproof, although some pundits are skeptical. It has a huge “open time”, which means it stays sticky and doesn’t dry out even if you worry about arranging your wood for a full 10 minutes. Titebond II gives you only five.

But real progress with all Titebonds, of course, bonds. How much cleavage, compression, flexor, impact, tension or shear is required to break the plane of a Titebond bond? It is measured in pounds per square inch, and it takes up to 4,000 pounds to break the Titebond III. Two insane tons. Hard wood will break before this eighteen.

From glue to lashes. And although the old-fashioned false eyelashes require eighteen, they are much weaker than the tightband-and enough thought about the hard-sealed eyelids. What’s new in lashes is a synthetic prostaglandin analogue called bimetoprost. (An artificial prostaglandin analogue is also an active ingredient in misoprostol, one of the approved pills for self-administered abortion.) Where chemical engineers can spell out how ultrasonic machines and PVA adhesives work, bimetoprost is a happy accident, and a mystery. . Essentially, ophthalmologists were working to reduce eye strain in glaucoma patients, and they discovered that bimetoprost relaxes the ciliary – the anxious muscle of the eye that constantly contracts as we read on our smartphones – causing fluid to flow inside. Eyes They were amazed that this movement of liquid like plasma also works as a miracle-grow for eye lashes.

The invention of technology that can make human hair grow seems to be the highest aspiration of mankind, it was a thrill. Hypotrichosis, or what the National Institutes of Health says is an “insufficient amount of lashes,” is bimetoprost treats disorder, which is seen in people with alopecia, but of course the compound has more useless application. Excitingly, bimetoprost can even trigger hypertrichosis বৃদ্ধি an increase in extra lashes, creating a creamy, abundant fringe over the eyes that eliminates the need for mascara. Purrs in the NIH study, “These hairs had a stronger appearance, were longer, thicker and more pigmented, and rose at a more acute angle to the skin than the control eye.” The only catch? Hypertrichosis caused by bimetoprost sometimes comes with an “irregular pattern of lash curling”. Never.

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