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Rob Jongschaap
Worked at University of Twente
Attended Leiden University
Lives in Netherlands
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Rob Jongschaap

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Instead of pressurized air as a shock absorber that can also support the weight of the vehicle, airless tires (also called non-pneumatic tires, or NPTs) use deformable solid materials (usually rubber) to achieve the same effects.

#AirlessTires #engineering  
Hankook puts its iFlex airless tire through consumer-oriented ride and handling tests
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Rob Jongschaap

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Scientists harvest energy from beam's self-induced, self-sustaining vibrations in airflow

'The energy harvester consists of a carbon fiber beam with a piezoelectric sensor and stepper motor to adjust the angle of attack of the airflow in the wind tunnel. Unlike previous designs, the system does not require a secondary vibrating structure because the beam itself vibrates, reducing the volume of the harvester and increasing its efficiency.'

' ... The researchers demonstrated the design using a flexible cantilever beam with a piezoelectric transducer, which they hung from the ceiling in a wind tunnel. They found that the amount of energy harvested depends on a combination of factors, including the wind speed and the angle at which the wind hits the beam. At a wind speed of 10 m/s and 5.4° angle, the method can harvest approximately 0.3 mW of power. Although the researchers plan to improve the power levels, even this small value can be used to power individual sensors, which, as Zakaria explained, have a wide variety of applications.

"Future monitoring of different systems and platforms such as air and water systems, structures, vehicles, infrastructure, etc., as well as secure data transmission and reception from these sensors, will require the use of hundreds or thousands of sensors, data loggers and hardware components," Zakaria said. "The ability to integrate energy harvesters within these sensors or data loggers to develop such self-powered instruments is very much needed to enable their use without the need to replace batteries on a regular basis."

In the future, the researchers plan to design even smaller beams with specific geometries and capabilities, as well as to improve the performance of the piezoelectric elements.
...'

http://phys.org/news/2015-07-scientists-harvest-energy-self-induced-self-sustaining.html
(Phys.org)—In an attempt to harvest the kinetic energy of airflow, researchers have demonstrated the ability to harvest energy directly from the vibrations of a flexible, piezoelectric beam placed in a wind tunnel. While the general approach to harvesting energy from these "aeroelastic" vibrations is to attach the beam to a secondary vibrating structure, such as a wing section, the new design eliminates the need for the secondary vibrating struct...
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Wave Equation

The wave equation is a partial differential equation that describes the propagation of various types of waves.

The equation appears throughout many fields in physics, including acoustics, fluid dynamics, electromagnetism, and quantum mechanics. With some modifications, it can even describe the spread of traffic jams on busy highways!

The one-dimensional equation was first discovered by d’Alembert in 1746 as he studied how vibrations propagated through a string, and the two- and three-dimensional equations were solved soon after by Euler during his study of acoustics.

The simulations above show the propagation of a disturbance on a two-dimensional surface for two different sets of boundary conditions.
Mathematica code here (https://gist.github.com/BrianWeinstein/7c38a5040f7eb1b56b04)
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This mega-yacht could have 2 pools, 2 movie theaters, 2 helipads and cost over $1 billion - Business Insider

' ... The 465-foot vessel takes luxury to eye-popping new heights.  [...] Two pools, two movie theaters, two helipads, a garage, multiple gym facilities, and a bi-level pool area merely scratch the surface of what this incredible boat will offer.  [...]  The Italian Sea Group project was dreamed up by Dobroserdov Design in a partnership with Admiral Centro Stile. ... '

http://www.businessinsider.com/admiral-x-force-145-worlds-most-expensive-yacht-2015-6
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+Rob Jongschaap ...oh true that....
Just a thought
That you would want to take your Happiness for a sail along some exotic coast

Rob Jongschaap

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BBC - Culture - Van Gogh’s Sunflowers: The unknown history

' ... Sometimes a work of art is so dazzlingly famous that it can blind people to its original context and meaning. That surely is the case with Vincent Van Gogh’s Sunflowers. ... '

http://www.bbc.com/culture/story/20140120-van-goghs-flower-power

H/t +Danièle Mordmardok 
One of Vincent Van Gogh’s most famous works is actually part of a series of sunflower paintings. Alastair Sooke shows how these masterpieces came to be.
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The First White Laser - IEEE Spectrum

'... Lasers could be far more energy-efficient than LEDs: While LED-based lighting produces up to about 150 lumens per watt of electricity, lasers could produce more than 400 lumens per watt, says Cun-Zheng Ning, a physicist and electrical engineer at Arizona State University at Tempe who worked on the laser. In addition, he says that white lasers could also lead to video displays with more vivid colors and higher contrast than conventional displays.

Another important potential application could be "Li-Fi", the use of light to connect devices to the Interenet. Li-Fi ould be 10 times faster than today’s Wi-Fi, but "the Li-Fi currently under development is based on LEDs," Ning says. He suggests white-laser based Li-Fi could be 10 to 100 times faster than LED-based Li-Fi, because the lasers can encode data much faster than white LEDs.
...'

http://spectrum.ieee.org/tech-talk/semiconductors/devices/the-first-white-laser

A monolithic white laser : Nature Nanotechnology : Nature Publishing Group

'... Monolithic semiconductor lasers capable of emitting over the full visible-colour spectrum have a wide range of important applications, such as solid-state lighting, full-colour displays, visible colour communications and multi-colour fluorescence sensing. The ultimate form of such a light source would be a monolithic white laser. However, realizing such a device has been challenging because of intrinsic difficulties in achieving epitaxial growth of the mismatched materials required for different colour emission. Here, we demonstrate a monolithic multi-segment semiconductor nanosheet based on a quaternary alloy of ZnCdSSe that simultaneously lases in the red, green and blue. This is made possible by a novel nanomaterial growth strategy that enables separate control of the composition, morphology and therefore bandgaps of the segments. Our nanolaser can be dynamically tuned to emit over the full visible-colour range, covering 70% more perceptible colours than the most commonly used illuminants.
...'

http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2015.149.html
Lasers that can span the entire color spectrum could speed up Li-Fi and find use in lighting and displays
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950 million Android phones can be hijacked by malicious text messages | Ars Technica

' ... The vulnerability affects about 950 million Android phones and tablets, according to Joshua Drake, vice president of platform research and exploitation at security firm Zimperium. It resides in "Stagefright," an Android code library that processes several widely used media formats. The most serious exploit scenario is the use of a specially modified text message using the multimedia message (MMS) format. All an attacker needs is the phone number of the vulnerable Android phone. From there, the malicious message will surreptitiously execute malicious code on the vulnerable device with no action required by the end user and no indication that anything is amiss. ... '

http://arstechnica.com/security/2015/07/950-million-android-phones-can-be-hijacked-by-malicious-text-messages/
 
Almost all #Android mobile devices available today are susceptible to hacks that can execute malicious code when they are sent a malformed text message or the user is lured to a malicious website, a security researcher reported Monday.
Booby-trapped MMS messages and websites exploit flaw in heart of Android.
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Building a Single-molecule Transistor from Scratch - IEEE Spectrum

'An international team of researchers has demonstrated for the first time that a single molecule can operate as a field-effect transistor when surrounded by charged atoms that operate as the gate. The team published its results in the August 2015 issue of the journal Nature Physics. '

http://spectrum.ieee.org/tech-talk/biomedical/devices/building-a-singlemolecule-transistor-from-scratch

Gating a single-molecule transistor with individual atoms : Nature Physics : Nature Publishing Group

'... Transistors, regardless of their size, rely on electrical gates to control the conductance between source and drain contacts. In atomic-scale transistors, this conductance is sensitive to single electrons hopping via individual orbitals1, 2. Single-electron transport in molecular transistors has been previously studied using top-down approaches to gating, such as lithography and break junctions1, 3, 4, 5, 6, 7, 8, 9, 10, 11. But atomically precise control of the gate—which is crucial to transistor action at the smallest size scales—is not possible with these approaches. Here, we used individual charged atoms, manipulated by a scanning tunnelling microscope12, to create the electrical gates for a single-molecule transistor. This degree of control allowed us to tune the molecule into the regime of sequential single-electron tunnelling, albeit with a conductance gap more than one order of magnitude larger than observed previously8, 11, 13, 14. This unexpected behaviour arises from the existence of two different orientational conformations of the molecule, depending on its charge state. Our results show that strong coupling between these charge and conformational degrees of freedom leads to new behaviour beyond the established picture of single-electron transport in atomic-scale transistors.
...'

http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3385.html
Circuits with single atoms and molecules: the ultimate of Moore's Law?
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Rob Jongschaap

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Is this the plane of the future? - Telegraph

'The plane of the future could well be a sleek and streamlined aircraft with a “blended wing” if proposals by the Delft University of Technology in Holland and Dutch carrier KLM come to fruition.'

http://www.telegraph.co.uk/luxury/travel/79466/is-this-the-plane-of-the-future.html

Is This The Future Of Aviation? - KLM Blog

' ... AHEAD stands for Advanced Hybrid Engine Aircraft Development. AHEAD is a long-term aircraft design study led by the Delft University of Technology in the Netherlands along with a variety of academic and manufacturing partners throughout the world. KLM Engineering & Maintenance participated in this study and helped design the AHEAD Aircraft that can carry 300 passengers over a range of 14,000 kilometres. ... '

https://blog.klm.com/is-this-the-future-of-aviation/#nf
KLM's sleek and streamlined AHEAD aircraft is one of many proposed aircrafts that could radically change the way we fly
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Faith sometimes has it's place for those that are unable to deal, emotionally, with real-world problems, but it doesn't help physical problems unfortunately.  This is the problem I have with religions. 
Do tell me if you have issues with my comments, I have no wish to offend.
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  • University of Twente
    Physics: teaching & research, 1970 - 2001
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Collecting valuable, interesting, remarkable and/or funny items about science, technology and more.
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  • Leiden University
    Physical Chemistry, 1962 - 1970
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Rob Jongschaap's +1's are the things they like, agree with, or want to recommend.
HG-architecture morphs wooden modules into pixelated spiral structure - ...
www.designboom.com

HG-architecture has designed 'part to whole', an installation placed within korea's national museum of modern and contemporary art.

Rainbow world: the most colourful places on Earth – in pictures
www.theguardian.com

The world is full of landscapes that are so surreal, and so intensely coloured, that it’s hard to believe they really exist. Take a look at

WIRED Space Photo of the Day | Science | WIRED
www.wired.com

Previous Galleries Space Photo of the Day for June 2014 Space Photo of the Day for May 2014 Every day, we find another awesome photo of spac

101 Years of Tour de France Globalization
www.nationalgeographic.com

This year is the 101st edition of the Tour de France. What was once a predominantly French race — created to up the sales of the sports news

no name design exhibition of 1000 objects at triennale design museum - d...
www.designboom.com

'no name design' offers a survey of the ingenuity and intelligence of the anonymously mundane.

A perfect negative crystal floating in space - 01 July 2014 - New Scientist
www.newscientist.com

What looks like a solid octahedron is actually a void inside a chunk of spinel, a gem best known as the centrepiece of the British queen's I

Txchnologist
txchnologist.com

Researchers have developed a detailed picture of one of the complex molecular machines inside the nucleus of our cells. A University of Wisc

10 Awesome science sculptures
www.sciencedump.com

The combination of Science and Art is something that really inspires me. It boths shows the beauty but also the mystery of what you normally

Cardboard
market.android.com

With your phone and a piece of Cardboard you can see some pretty amazing stuff. Try out a set of demos showing immersive experiences on Andr

Health 'Buzzwords' Encourage Consumers to Buy Certain Food Products
www.scienceworldreport.com

Our food choices may be partially influenced by certain health buzzwords that lull consumers into thinking certain products are "better" for

BCXSY create linear clock for Designers’ Days
www.dezeen.com

This prototype clock by Boaz Cohen and Sayaka Yamamoto tells the time in a straight line by replacing the hands with a pivoting shell-like s

Earth from Space: Desert bullseye
www.esa.int

Earth from Space is presented by Kelsea Brennan-Wessels from the ESA Web-TV virtual studios. Discover a giant geological wonder in the Sahar

Poll: Most Americans Think Future Tech Will Make Life Better (Infographic)
www.livescience.com

59 percent of those polled were optimistic, while 30 percent thought the changes would make people worse off.

apple presents 30 years of mac, highlighting 30 years of classic design ...
www.designboom.com

30 years of mac: thirty years ago, most people didn’t even know how to use a computer.

Hoe kun je van een biljartbal een banaan maken?
www.volkskrant.nl

Antimaterie klinkt als sciencefiction, maar wordt in ziekenhuizen al toegepast in een PET-scanner om bijvoorbeeld een tumor te lokaliseren.

Are humans changing the world faster than animals can evolve?
www.cbsnews.com

Humans are fundamentally changing the planet and could be causing nearly 20,000 species to become extinct. Elizabeth Kolbert, author of "The

Astronomers have found the oldest known star in the universe
www.euronews.com

Australian astronomers have found the oldest known star in the universe, a discovery that may help to resolve a long-standing discrepancy be

Shelters resembling giant pompoms warm skaters on a frozen river
www.dezeen.com

Canadian firm RAW Design has created a series of skating shelters that look like giant pompoms to keep skaters warm on a frozen river in Win