1. Aerogel Aerogel holds 15 entries in the Guinness Book of Records, including “best insulator”, and “lowest-density solid”. Sometimes called “frozen smoke”, aerogel is made by the supercritical drying of liquid gels of alumina, chromia, tin oxide, or carbon. It’s 99.8% empty space, which makes it look semi-transparent.
Scitable is a free science library and personal learning tool brought to you by Nature Publishing Group, the world's leading publisher of science. Scitable currently concentrates on genetics and cell biology, which include the topics of evolution, gene expression, and the rich complexity of cellular processes shared by living organisms. Scitable also offers resources for the budding scientist, with advice about effective science communication and career paths.
From Fibers to Finished Composite Components (english)
Gelcoats are special resins that are designed to form the first surface of a composite mould or part. Gelcoats are generally applied as a thickness of 0.3-0.7mm and are specially formulated to provide the part or mould surface with properties such as resistance to UV (ultraviolet) degradation, hydrolysis or osmosis (where water is absorbed into a composite over considerable time). Gelcoats also include thixotropic additives to make them thicker and more able to stick to inclined surfaces of moulds. Epoxy gelcoats are based on epoxide resin and polyamine hardener (just like epoxy resin) and should be used when making parts using epoxy resin , if a gelcoat surface is required. Gelcoats are applied to a mould surface and allowed to cure to a certain point before the first layer of laminate is applied. Epoxy Gel Coat
How to Make a Carbon Fiber Car Bonnet/Hood - Part 2/3
A bright idea to help bike riders be seen and not harmed Inventors: bike helmet of the future? A researcher at RMIT University hopes he's invented the bicycle helmet of the future. PT2M16Shttp://www.smh.com.au/action/externalEmbeddedPlayer?id=d-2006f620349June 8, 2012
Singapore scientists create world's smallest gear | Video
Confirmed by ETH Zurich study: nuclear energy phase-out is possible Restructuring the energy system without nuclear power by 2050 is in principle technologically possible and economically manageable. However, it will demand a concerted effort by the whole of society. This is the conclusion reached by ETH Zurich researchers in a study they presented at the Energy Talks 2011. Over the past few months, a group of researchers at the Energy Science Center (ESC) of ETH Zurich have carried out an intensive examination of whether the available options will enable Switzerland to scope out a medium-term energy future without nuclear power, as decided by the Swiss Federal Council in May. Their answer was «yes». However, a step-by step restructuring of Switzerland’s energy systems during the coming years and decades will require great efforts by all areas of society.
How to make a beta cell divide An ETH Zurich research team-in collaboration with Roche Pharmaceuticals- has discovered a hitherto unknown mechanism by which the insulin producing beta cells are negatively affected. This raises new hopes for pharmacologically stimulating these cells to divide and thus combating diabetes. Bace1 is by no means an unknown enzyme. It is the protease cleaving the amyloid protein in the brain and is thereby significantly contributing to the pathogenesis of Alzheimer’s disease. About its close relative Bace2, however, we for a long time merely knew that it is not involved in this disease, as it is barely present in neurons.
1, aircraft radial engine 2, oval Regulation 3, sewing machines 4, Malta Cross movement - second hand movement used to control the clock 5, auto change file mechanism
Huge Electromagnet and balls
Tesla's Earthquake Machine
By the time you finish reading this article, you will undoubtedly think of Theo Gray when you hear someone say "mad scientist." Theo, a columnist for the magazine Popular Science, recently published a book titled Theo Gray's Mad Science: Experiments You Can Do At Home - But Probably Shouldn't . The book is full of experiments so outrageous (Ignite your own phosphorus sun in a globe filled with pure oxygen! Make your own shotgun ammo by pouring molten lead off the roof!