Written for the Scientific American By Dr. M.Reimann, of Berlin Supposing it is required to dye 100 lbs. of raw silk, 12 lbs. of soap are boiled with a sufficient quantity of river or rain water ...

See more items in: Underwood & Underwood Glass Stereograph Collection, Underwood & Underwood Glass Stereograph Collection / Series 3: Underwood & Underwood glass plates / 3.1: Underwood and Underwood ...

Three ombre-dyed thrown silk skeins; National Silk Dyeing Co., 1915. These three skeins of colored silks shade from light to dark. Placed in a box so as to show the arrangement of of the warp in the ...

Cacao nibs, chocolate's less processed and more rebellious cousin, are the new darlings of health-conscious foodies and adventurous chefs. These crunchy morsels deliver a punch of intense ...

Cocoa looks to be the biggest gainer among major commodities this year, even outpacing the rise in the U.S. stock market and bitcoin, with prices for chocolate’s main ingredient having more than ...

To remain consistent with research, "women" will be used throughout this article to refer to cisgender women. An estimated one-third or more of women over age 18 and about 10% of men over age 40 use ...

Hot cocoa is a beloved drink that warms the hearts (and hands!) of many, especially during the chilly seasons. By adding a dash of peppermint oil to your hot cocoa, you can elevate this classic ...

We have gathered all the information for you in one convenient spot, but please keep in mind that these are subject to change. We do our best to keep everything updated, but something might be out of ...

Some parents say that red dye No. 3 in foods causes behavioral problems in their kids. (Illustration: Celina Pereira; photos: Getty Images) Last October, California Gov. Gavin Newsom signed into ...