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By Sidney Paine Johnston. Being a collection of formulae and processes for artisans, giving the composition of various alloys, amalgams, solders, bronzes, lacquers, varnishes, cements, etc., also data for the preservation and decoration of various metallic articles.

by Sidney Paine Johnston

Compiled from tbi files of the american artisan and various other sources. Preface Not so very many years ago the publication of a book such as this one would have been an impossibility, as metal workers guarded their secrets with jealous care and would, under no consideration, give... The American Artisan Manuals Each the highest authority in its particular field. Can we grow a stronger-than-steel 'wonder material' to save the world? It’s stiffer than Kevlar, thinner than paper, and in a few years, it may be mass-produced using only sunlight and water.

Can we grow a stronger-than-steel 'wonder material' to save the world?

Scientists in the US this week announced a new, and potentially groundbreaking method for producing nanocellulose — a so-called "wonder material" derived from tree fiber that could be used to create ultra-thin displays, lightweight body armor, and a wide range of other products. Their key ingredient? Algae. "one of the most important discoveries in plant biology" Dr. Neo-Tribal "Epoxy"/AKA Cutler's Resin - The Knife Network Forums : Knife Making Discussions.

A few minutes ago, I glued a blade in a piece of antler using the pine pitch glue.

Neo-Tribal "Epoxy"/AKA Cutler's Resin - The Knife Network Forums : Knife Making Discussions

My mix called for 3 parts pitch, 1 part bees wax, and 2 parts moose dung. The dried moose dung was hammer forged (cold) on the kitchen counter basically to a coarse powder. I melted the pitch and the wax in an old soup can, then stirred in the hand forged powdered dung to form the glue. I did this in my kitchen on the gas range. Pitch smokes a lot when melting.

Ecomaterials. Waterproofing.


Bamboo. Cheap Pages/Boat Makers' Materials. THIS IS simply a page for materials and ideas and things I've used.

Cheap Pages/Boat Makers' Materials

Some are original, I think, and some aren't. For polytarp sail info, click on The Cheap Page, above, and follow your nose. Howza bout some Cleats? Howza bout some Knots? Featuring the Constrictor Hitch. From our UK Correspondent, Nigel Cameron, sources for bamboo spars: Jacobs, Young & Westbury Ltd. "They have a price list with bamboo suitable for sizable dinghy spars. The Woodbridge Boatstore Lime Kiln Quay Woodbridge Suffolk IP12 1BD include bamboo for spars in their extensive trad. boating catalogue, with brief comments on its use. " Howza bout some Friction Blocks? Huile de ricin. Un article de Wikipédia, l'encyclopédie libre.

Huile de ricin

L'huile de ricin est une huile végétale obtenue à partir des graines de ricin. Elle est incolore à jaune très clair. Les triglycérides (triples esters de glycérol et d'acides gras) dont elle est constituée comptent pour environ 90 % de ses acides gras un acide gras en C18, oméga-9 et hydroxylé : l'acide ricinoléique ou acide (R)-(+)-12-hydroxy-9Z-octadécénoïque. Utilisation[modifier | modifier le code] Toxicité[modifier | modifier le code] L'acide ricinoléique altère la muqueuse intestinale et provoque des pertes importantes en eau et en électrolytes (sels minéraux), d'où son action purgative intense et irritante. Borax. Un article de Wikipédia, l'encyclopédie libre.


Le borax est une espèce minérale de formule (Na2B4O7•10H2O). C'est un minerai de bore appelé aussi tétraborate de sodium décahydraté ou borate de sodium. Inventeur et étymologie[modifier | modifier le code] Silicon. Silicon is a chemical element with the symbol Si and atomic number 14.


It is a tetravalent metalloid, less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table. Controversy about silicon's character dates to its discovery; it was first prepared and characterized in pure form in 1823. In 1808, it was given the name silicium (from Latin: silex, hard stone or flint), with an -ium word-ending to suggest a metal, a name which the element retains in several non-English languages. However, its final English name, first suggested in 1817, reflects the more physically similar elements carbon and boron.

Silicon is the eighth most common element in the universe by mass, but very rarely occurs as the pure free element in nature. Elemental silicon also has a large impact on the modern world economy. Characteristics[edit] Physical[edit] Silicon is a semiconductor. Silly Putty. Silly Putty drooping through a hole Silly Putty is a toy based on silicone polymers which display unusual physical properties.

Silly Putty

It bounces, but breaks when given a sharp blow and can also flow like a liquid. It contains a viscoelastic liquid silicone, a type of non-Newtonian fluid, which makes it act as a viscous liquid over a long time period but as an elastic solid over a short time period. It was originally created by accident during research into potential rubber substitutes for use by the United States in World War II. The name Silly Putty is a trademark of Crayola LLC; the company's manufacturer is based in Easton, Pennsylvania.