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Decyl glucoside is a mild non-ionic surfactant used in cosmetic formularies, [1] including baby shampoo and in products for individuals with a sensitive skin. Many natural personal care companies use this cleanser because it is plant-derived, biodegradable, and gentle for all hair types. Decyl glucoside was invented by Robert Prairie in 1934.
Written Chinese is a writing system that uses Chinese characters and other symbols to represent the Chinese languages. Chinese characters do not directly represent pronunciation, unlike letters in an alphabet or syllabograms in a syllabary .
Bamboo and wooden strips were the standard writing material during the Han dynasty and excavated examples have been found in abundance. [4] Subsequently, the improvements made to paper by Cai Lun during the Han dynasty began to displace bamboo and wooden strips from mainstream uses, and by the 4th century AD bamboo had been largely abandoned as ...
Whether a material is biodegradable is determined by its chemical structure, not the origin of the material from which it is made. [14] Indeed, the sustainability benefits of drop-in biobased plastics occur at the beginning of the material life cycle, but still, when manufactured, their structure is identical to their fossil-based counterparts.
The first known use of biodegradable in a biological context was in 1959 when it was employed to describe the breakdown of material into innocuous components by microorganisms. [57] Now biodegradable is commonly associated with environmentally friendly products that are part of the earth's innate cycles like the carbon cycle and capable of ...
Wood-free paper is paper created exclusively from chemical pulp rather than mechanical pulp. [1] Chemical pulp is normally made from pulpwood, but is not considered wood as most of the lignin is removed and separated from the cellulose fibers during processing, whereas mechanical pulp retains most of its wood components and can therefore still be described as wood.
It is often helpful to include the original characters for Chinese-language names, terms, or phrases upon their initial mention in an article. There are many distinct Chinese words and names with similar or identical romanisations, and translations of Chinese terms into English may be inexact or easily conflated without additional context.
The very large size of the collection and the significance of the texts for scholarship make it one of the most important discoveries of early Chinese texts to date. [1] [2] On 7 January 2014 the journal Nature announced that a portion of the Tsinghua Bamboo Strips represent "the world's oldest example" of a decimal multiplication table. [3]