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Category: Aerospace Engineering

3-D printers—a revolutionary frontier for medicine

Surgeons at the University of Saskatchewan use a 3D printed human brain to plan complex neurosurgical procedures for patients with movement disorders. Mission control on earth receives an urgent communication from Mars that an astronaut has fractured his shinbone. Using a handheld scanning device, the crew takes images of his damaged tibia and transmits them to earth. Orthopedic surgeons then use a 3-D printer to create an exact replica of the astronaut’s leg from medical imaging files obtained before the…

The sublime challenge of jet noise

Credit: CC0 Public Domain Humans make a lot of noise. The riffs of heavy metal bands like Metallica and Kiss have soared to levels in the 130-decibel range, levels sure to lead to auditory damage. But try as they might, bands just can’t compete with the decibel ranges produced by jet engines. They are, said Joe Nichols, among the loudest sources of human-made noise that exist. An assistant professor of Aerospace Engineering and Mechanics at the University of Minnesota,…

NASA's Cassini spacecraft ends its historic exploration of Saturn

A thrilling epoch in the exploration of our solar system has come to a close, as NASA’s Cassini spacecraft made a fateful plunge into the atmosphere of Saturn, ending its 13-year tour of the ringed planet. Cassini’s plunge brings to a close a series of 22 dives between Saturn and its rings, a feat never before attempted by any spacecraft. Source link…

Engineering brighter smiles | Engineering // Mizzou // University of Missouri

The system uses a clear gel. After application, the user uses the Novashine mouthpiece, which contains 16 individual LED lights that can be powered by plugging the accompanying cord into a phone, computer, USB port or compatible electronic device. Photo courtesy of Nanova, Inc. Nanova, Inc. has done cutting-edge work in the area of dentistry. Now, the company has developed a method to whiten teeth rapidly, affordably and with minimal pain. Novashine is the latest dental product of Nanova, a…

France to arm military surveillance drones

France is set to arm drones that are currently used exclusively for surveillance and intelligence, a first for the French military, the defense minister said Tuesday. Florence Parly said the decision will initially apply only to the six unarmed Reaper surveillance drones that France bought from the United States. Most of them, based in Africa’s Sahel region, are involved in the fight against Islamic extremists. Parly did not specify a timeframe for when they would be armed or what…

A new way to find pilots for US Navy unmanned aircraft

Volunteers try out the Selection for UAS Personnel, or SUPer. Developed with support from the Office of Naval Research, SUPer is a series of specialized tests assessing cognitive abilities and personality traits, to identify potential Navy and Marine Corps unmanned aviation systems (UAS) operators. Credit: Naval Aerospace Medical Institute Before acceptance to flight school, aspiring naval pilots must pass the Aviation Selection Test Battery (ASTB)—a rigorous intellectual exercise that evaluates things like aviation and nautical knowledge, math and engineering skills,…

Building Blockchain with Hyperledger : Developer’s Guide (Part 2)

Welcome to the Blockchain Revolution! In the last article of this developer’s guide, we went on to explore the basic building blocks starting from creating our own network to writing the client apps. Quickly summarizing, IBM’s block chain is based on Linux Foundation’ open source Hyperledger fabric. This fabric is like an operating system for data sharing networks, marketplaces, micro-currencies and decentralized digital communities.We recommend that you do a quick recap of our previous Blockchain developer’s guide before diving into the…

Using a camera to spot and track drones

EPFL researchers have developed algorithms capable of detecting and tracking small flying objects using a simple camera. Credit: istock EPFL researchers have shown that a simple camera can detect and track flying drones. Plus, the lightweight, energy-efficient and inexpensive technology could be installed directly on the drones themselves and enhance safety in the skies. The rising number of drones in air space poses numerous challenges. Topping that list is our ability to simply detect these small unmanned aerial vehicles. Periodic…