what is parachute silk?
108099
Silk has not been used for a very long time due to instability and tendancy to degrade over time.  Most parachutes are now made with rip-stop nylon (not sure if this is a patented product or a generic name).  Drop me a male if you need any other details :-)
58352
Lycra is a type of Spandex.  They are segmented polyurethanes (SPU).  See the first link.\n\nFrom the second link: \nA new class of segmented polyurethane elastomers has been developed to mimic the morphology of spider silk fibers. Segmented polyurethanes consist of alternating hard and soft segments within the same polymer backbone. The hard segments phase separate into microcrystalline regions, which anchor the ends of the soft segments and lead to a large-scale physically cross-linked network structure.
138913
Sericulture, or silk production, from the moth, Bombyx mori (L.), has a long and colorful history unknown to most people. Although there are several commercial species of silkworms, B. mori is the most widely used and intensively studied, and techniques for its rearing are the most improved. This insect is the sole living species in its family, Bombycidae, and has been domesticated for so long that it probably no longer survives in the wild.\n\nTo be continued on....\nhttp://www.insects.org/ced1/seric.html
478094
Yup and mine are danceing on my head\n\nofcourse not\n\nHair consists 90% of a biological polymer, α-keratin, and about 10% water, which modifies its mechanical properties. This α-helically coiled protein is further wound into supermolecular coiled-coil microfibrils, many of which are held together with a protein glue to form long macrofibrils, which are packed inside dead hair cells about 100 µm long by 3 µm across. Several of these associate to form one strand of hair, which is covered with tiny surface scales. The ends of individual keratin chains are high in the amino acids proline (an α-helix breaker) and cysteine. Adjacent keratin chains are held together by many disulfide bonds bridging their cysteines. These links are very robust; virtually intact hair has been recovered from ancient Egyptian tombs. Different parts of the hair have different cysteine levels, leading to harder or softer material.
190224
♥that traditional chinese dress you see ladies wearing is called a Cheongsam, often made of silk♥
718731
I don't know but you would like to buy a Parachute I'm selling one. Only used once, never opened! Slight Brown Stain.
783266
Although the do have some products made of Silk - most of their products are polyester outer layers which pull perspiration to the surface and away from the body. The inner features Outlast® acrylic with micro thermal capsules that absorb body heat. This heat is released back into your body as needed to maintain thermal equilibriam.
41396
Leonardo DaVinci is the first to draw the parachute. Check Wikipedia for it.
270013
usually a polyester blend with rayon.
983776
Well, its an organic compund\nIt is stretchy.  Becomes soft in liquids and temps of about 96 F.
413848
try this link\n\nhttp://www.google.com/custom?q=silkroad+bot&client=pub-3606875017121328&forid=1&channel=7045543180&ie=ISO-8859-1&oe=ISO-8859-1&cof=GALT%3A%23008000%3BGL%3A1%3BDIV%3A%23336699%3BVLC%3A663399%3BAH%3Acenter%3BBGC%3AFFFFFF%3BLBGC%3A336699%3BALC%3A0000FF%3BLC%3A0000FF%3BT%3A000000%3BGFNT%3A0000FF%3BGIMP%3A0000FF%3BFORID%3A1%3B&hl=en
64492
Increase the drag, or resistance by enlarging the surface area. The parachute is a simple solution. \n\nHave you thought of making a whirly-bird/helicopter-type device to slow down the fall of the egg? Balsa wood angled correctly should be able to produce simple a rotary blade that would slow down the decent of your egg. Keep me informed.
4064
they explain where it comes from, but not how it's made. Sure it's from silkworms and mulberry trees, but the way the chinese found out about silk is they dropped a cocoon into a bowl of very, very hot water (that was previously boiling) and the cocoon turned into a soft, pliable thread that could be unraveled, refined, spooled and made into garments for upperclass people. For years the chinese guarded the secret with their lives! They would do anything to protect the secret.
763232
One sheet of construction paper\nOne piece of tape (around 5 inches)\n3"x3" piece of bubble wrap\nTwo six inch pieces of string\nOne sandwich bag\n\nRoll the construction paper into a cone, securing with the tape. Put the bubble wrap into this for the egg to sit on. Then attach the sandwich bag to the two pieces of string. Then attach the pieces of string to the cone of paper. The sandwich bag will act as a parachute. The cone will absorb some of the shock, as well as the bubble wrap. I cannot swear this will work, but in theory it looks like it would.
109037
Get a copy of "What Color is Your Parachute?" By Richard N. Bolles (check your local library) It is an excellent resource.  see www.jobhuntersbible.com
1026038
Originally, it would follow the general kinematics formula of:\nv = u + at\nwhere u-initial velocity, v-final velocity, a-acceleration and t-time.\nand\nmg - R = ma\nwhere m-mass of parachute, R-air resistance, a-resultant acceleration.\n\nHowever, when R increases, there will be a stage when\nmg - R = 0 => mg = R\n\nAt this instant, the velocity remains constant as there will not be anymore resultant acceleration. This is called the terminal velocity.\n\nSo the velocity, v is equal to the final velocity just before the terminal velocity is reached.
911147
About 10 microns. This was hard to find! A silk fiber is about 2 deniers (ref. 1). A denier, it turns out, is a measure of linear density or mass/length (1 g per 9 km, or ~10^-6 g/cm; ref. 2). According to ref. 3, silk's specific gravity is ~1.4, so a 2-denier silk fiber should have a cross-sectional area of ~1.5*10^-6 cm^2 and thus be ~1.3*10^-3 cm or 13 microns thick. Ref. 3 roughly confirms this in its diagram of a silk fiber (figure 3); their number is 10 microns. (If I had found this picture first, I could have saved some work!)