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Tissue paper sheet. Tissue paper, or simply tissue, is a lightweight paper or light crêpe paper.Tissue can be made from recycled paper pulp on a paper machine.. Tissue paper is very versatile, and different kinds are made to best serve these purposes, which are hygienic tissue paper, facial tissues, paper towels, as packing material, among other (sometimes creative) uses.
Facial tissue and paper handkerchiefs are made from the lowest basis weights tissue paper (14–18 g/m 2). The surface is often made smoother by light calendering. These paper types consist usually of 2–3 plies.
500 BC – Pills were used. They were presumably invented so that measured amounts of a medicinal substance could be delivered to a patient. 510–430 BC – Alcmaeon of Croton scientific anatomic dissections. He studied the optic nerves and the brain, arguing that the brain was the seat of the senses and intelligence.
As an example of its accuracy, 18th century scientist Guillaume Le Gentil, during a visit to Pondicherry, India, found the Indian computations (based on Aryabhata's computational paradigm) of the duration of the lunar eclipse of 30 August 1765 to be short by 41 seconds, whereas his charts (by Tobias Mayer, 1752) were long by 68 seconds. [89]
The different tissues were designated as tissue groups with different half-times, and saturation was assumed after four half-times (93.75%) Five tissue compartments were chosen, with half-times of 5, 10, 20, 40 and 75 minutes. [55] Depth intervals of 10 ft were chosen for decompression stops. [11]
2004: First podcast, invented by Adam Curry and Dave Winer, is a program made available in digital format for download over the Internet and it usually features one or more recurring hosts engaged in a discussion about a particular topic or current event. [544] [545] [546] 2005: YouTube, the first popular video-streaming site, was founded
Sutures were made of plant materials (flax, hemp and cotton) or animal material (hair, tendons, arteries, muscle strips and nerves, silk, and catgut). [ citation needed ] The earliest reports of surgical suture date to 3000 BC in ancient Egypt , and the oldest known suture is in a mummy from 1100 BC.
Tissue paper, a type of thin, gauzy translucent paper used for wrapping and cushioning items; Tissue (cloth), a thin, transparent, and lightweight fabric; Facial tissue, tissue paper used for cleaning the face; Japanese tissue, tissue paper from Japan made of vegetable fibers; Toilet paper, tissue paper used for cleaning the anus