Induction heating : oddlysatisfying. ELI5: What is the difference between laser engraving and laser cleaning? I read an article on this sub that said you can use lasers to restore just about any type of material. How doesn't it burn everything up or damage the piece? : LaserCleaningPorn. Laser Cleaning Porn. Laser Cleaning: HIGH POWER 1000W! Ax from Viking era, before and after conservation 10th–11th century [566x674] : ArtefactPorn. Sıcak cisimler neden kırmızıdır? A 2500-years-old sword was discovered in China in untarnished condition. Two of the same type of metals will bond together in space? : askscience. Solar panels have gotten thinner than a human hair. Soon they’ll be everywhere. One of the reasons I think solar photovoltaic power is going to take over the world is that it is scalable in a way no other power source can be.
It can be used to build multi-hundred-megawatt power plants, or it can be scaled down. Way down. How far down? Try less than the width of a human hair. Solar cells are getting ridonkulously small South Korean scientists have created solar PV cells that are 1 micrometer thick, hundreds of times thinner than most PV and half again as thin as other kinds of thin-film PV. The cells are made with gallium arsenide as the semiconductor, "cold welded" directly onto a metal substrate, with no adhesive to make them thicker.
(Applied Physics Letters) With cells this thin, solar PV can be integrated in all sorts of "wearables" — clothes, glasses, hats, or backpacks with solar cells integrated, continuously feeding power to our portable electronics. Se connecter à Facebook. Welding a Saxon Sword. Could be a source of valuable metals and critical elements. DENVER, March 23, 2015 -- Poop could be a goldmine -- literally.
Surprisingly, treated solid waste contains gold, silver and other metals, as well as rare elements such as palladium and vanadium that are used in electronics and alloys. Feces to fortune: US sewage may contain billions in precious metals — RT America. ELI5: Why does steel need to be recovered from ships sunk before the first atomic test to be radiation-free? Isn't all iron ore underground, and therefore shielded from atmospheric radiation? : explainlikeimfive. The Trinity explosion 0.016 seconds after detonation, 1945.
The Trinity explosion, 16 ms after detonation.
The viewed hemisphere’s highest point in this image is about 200 metres (660 ft) high. On July 16, 1945, the United States became the first country to successfully detonate an atomic weapon, signalling the beginning of a new era in warfare and in politics. In the early 1940s, the U.S. government authorized a top-secret program of nuclear testing and development, codenamed “The Manhattan Project”. Materials Science and Engineering Information. FAQ: What are the microstructural constituents Austenite, Martensite, Bainite, Pearlite and Ferrite? Frequently Asked Questions Austenite and ferrite Austenite was originally used to describe an iron-carbon alloy, in which the iron was in the face-centred-cubic (gamma-iron) form.
MATTER: Who we are. MATTER was set up as a non-profit consortium of UK materials science departments in 1993 to develop and help integrate computer-based learning (CBL) materials into mainstream teaching.
Led by the University of Liverpool, MATTER was originally one of over 70 different projects funded by the Teaching and Learning Technology Programme (TLTP). This phase of the project resulted in the publication in 1996 of the award-winning Materials Science on CD-ROM, with a second version being released in 1998. This has now become the leading software resource of its type, and is in use in universities throughout the world. In 1997, Materials Science on CD-ROM was unanimously voted by public jury as winner of the Educational Video/ CD-ROM/CDi competition at EUROMAT '97, held in Maastricht, Netherlands. More recently, our activities have expanded to include the development of science-based software resources for schools, industry and other science disciplines in universities.
Links. Raw materials. Raw materials. POSCO ASSAN: KAYNAKLAR SINIRLI, YARATICILIK SONSUZDUR. Dislokasyonlar. Metalurji ve Malzeme Kulübü. Çelik, demir ve karbonun alaşımı olarak tanımlanır.
Nehir Çatal Kaşık Bıçak Takımları, Çay Setleri, Çeyiz Setleri. Please Select Your Language ∨
Iron pillar of Delhi. The Iron Pillar located in Delhi, India, is a 7 m (23 ft) column in the Qutb complex, notable for the rust-resistant composition of the metals used in its construction.
The pillar has attracted the attention of archaeologists and materials scientists and has been called "a testament to the skill of ancient Indian blacksmiths" because of its high resistance to corrosion. The corrosion resistance results from an even layer of crystalline iron hydrogen phosphate forming on the high phosphorus content iron, which serves to protect it from the effects of the local Delhi climate. The pillar weighs over 6,000 kg, and is thought to have originally been erected in what is now Udayagiri by one of the Gupta monarchs in approximately 402 CE, though the precise date and location are a matter of dispute. It was transported to its current location in 1233 CE.
Roadmap to Engineering in Canada. WOOTZ STEEL: AN ADVANCED MATERIAL OF THE ANCIENT WORLD. WOOTZ STEEL: AN ADVANCED MATERIAL OF THE ANCIENT WORLDS.
Srinivasan and S. Ranganathan Department of Metallurgy Indian Institute of Science Bangalore Abstract The development of ancient Indian wootz steel is reviewed. Wootz is the anglicized version of ukku in the languages of the states of Karnataka, and Andhra Pradesh, a term denoting steel. The Key Role of Impurities in Ancient Damascus Steel Blades. Archaeotechnology J.D.
Verhoeven, A.H. Pendray, and W.E. Dauksch The art of producing the famous 16-18th century Damascus steel blades found in many museums was lost long ago. Recently, however, research has established strong evidence supporting the theory that the distinct surface patterns on these blades result from a carbide-banding phenomenon produced by the microsegregation of minor amounts of carbide-forming elements present in the wootz ingots from which the blades were forged. Author's Note: All compositions are given in weight percent unless otherwise noted. The arms and armor section of most large museums display examples of Damascus steel weapons. This article is concerned with the second type of Damascus steel, sometimes called oriental Damascus. Unfortunately, the technique of producing wootz Damascus steel blades is a lost art. Wootz steel. Swords manufactured from crucible steels, such as wootz steel, exhibit unique banding patterns due to the intermixed ferrite and cementite alloys in the steel Wootz steel is a steel characterized by a pattern of bands or sheets of micro carbides within a tempered martensite or pearlite matrix.
It is the pioneering steel alloy matrix developed in South India in the sixth century BC and exported globally. Carbon Nanotubes Were An Ancient Superweapon. Wootz steel. Wootz Ep 4: Making Wootz Steel. Memory alloy bounces back into shape 10 million times. Engineers have produced an alloy that springs back into shape even after it is bent more than 10 million times. "Memory shape alloys" like this have many potential uses, but present incarnations are prone to wearing out. Özelliklerine Çok Şaşıracağınız 10 İnsan Yapımı Malzeme. World Steel Association. World Steel Association, often abbreviated as worldsteel, is the international trade body for the iron and steel industry.
The association represents approximately 170 steel producers (including 9 of the world's 10 largest steel companies), national and regional steel industry associations and steel research institutes. World Steel Association members represent around 85% of world steel production. The purpose of the association is to promote steel and the steel industry to customers, the industry, media and the general public. World Steel Association is a non-profit organisation with its headquarters in Brussels, Belgium and in Beijing, China. Sözlük - Metalurji ve Malzeme Mühendisliği. Cupola furnace. A cupola or cupola furnace is a melting device used in foundries that can be used to melt cast iron, ni-resist iron and some bronzes.
The cupola can be made almost any practical size. The size of a cupola is expressed in diameters and can range from 1.5 to 13 feet (0.5 to 4.0 m). The overall shape is cylindrical and the equipment is arranged vertically, usually supported by four legs. The overall look is similar to a large smokestack. France-METALLURGIE. Gemciler. Guide to "Working in Germany" 17 Websites That Will Make You Smarter. Se connecter à Facebook. How to Find an Internship in Germany - Young Germany. Ask Your University If you are applying for an internship while still a student, then a good place to start is your university. Speak to the Careers Office about what programs are available to you. The benefits of going through your university are many: A lot of the research has already been done for you, the programs offered through the university are tailored and pitched to you as a student of that university, and you will likely be able to speak to people and get first-hand testimonials.
If you aren't quite sure of what you're looking for, or want a general overview of the process and positions available, then utilize your university's resources. Go Online If you can't find anything through your university, then the internet is your friend. Advice from an interviewer. EXCEL DERSLERİ. iPhone 5'e titanyumdan sert 'zırh' geliyor - Hi-Tech. Materials Science and Engineering. The Sawon: Useful Links for Job Opportunities and Internships in Korea. How to Use LinkedIn to Boost Your Career. Whether you are a recent college grad who is just entering the workforce or an experienced industry veteran, managing your career is a process that everyone must make time for.
The good news is that newer technology, such as LinkedIn, makes this process easier, because it connects you to a network of other like-minded professionals. In fact, LinkedIn is the largest professional networking site, boasting over 300 million members worldwide. The benefits of joining this largest professional networking site go far beyond just finding a better job. It can also help you in your current job as well. Learn how to use LinkedIn to boost your career and open doors that you never thought possible. Finish Your Profile. (x-post from r/Economics) List of 33 Free University Courses in Economics from MIT, Yale, Duke, Stanford etc. (from Beginner to Advanced levels) : Frugal. Kroll ve Hunter Prosesleri ile Titanyum Üretimi ve Şekillendirilmesi – KBT Bilim Sitesi.
Employers of Reddit: During an interview, when you ask "Have you any questions?", what are the questions we should be asking? [Serious] : AskReddit. 10 Amazing Man-made Substances. Technology We all know that mankind is capable of genius. But if you scratch the surface of what we can come up with, even those of us who have already discovered chocolate-covered pretzels can be blown away. For instance, did you know that we have … ALTEK DOKUM.