Current energy policies are still based heavily on natural resources. Meanwhile, the trend is increasingly toward alternative resources, such as wind power.
It's only a matter of time before natural resources, such as petroleum, are depleted. Petroleum, a fossil-based energy source deposited across millions of years, is used to produce fuel or electricity. Taking stock of the fact that 260 billion barrels (one barrel = 159 liters) of oil were extracted over the last 11 years, it's evident that the world's petroleum resources will be depleted one day. New developments in solar or wind power are aimed at providing alternative energy sources that will enable us to maintain our current standard of living. Petroleum is also required by the chemical industry to manufacture special plastics.
When discussing the subject of petroleum and alternative energy, one must bear the advantages and disadvantages in mind. Our resources are running short . Because we cannot count on petroleum for the future, there will come a time when everyone will rely on the efficiency of wind power and other alternative energy sources . Unlike petroleum, wind power can be managed to ensure that it constantly renews itself. Wind power meanwhile makes it possible to have enough resources to supply entire cities. Petroleum has the additional disadvantage of harming the environment through CO2 emissions. This has resulted in increasing demand for resources such as wind power. Wind power can be classified into different categories. A class 4 wind turbine can meanwhile provide resources in a much more efficient manner than petroleum resources for instance. In addition, unlike petroleum, resources such as wind power offer a decentralized energy supply. This means that in contrast to petroleum, the utilization of wind power does not require a large power plant. Instead, it makes "transporting" the energy easier and faster. Decentralized wind power entails a massive infrastructure change. Resources such as wind power certainly bring disadvantages when it comes to the environment, although they pale in comparison to the disasters that can result from petroleum. The utilization of our resources determines how we continue to maintain our standard of living. This makes it important to continue public discourse on the issues of wind power and petroleum.
It's only a matter of time before there is no petroleum left. For this reason, from a resource standpoint we should already be moving toward heavy reliance on wind power instead of petroleum. After all, from a pure scientific point of view, new petroleum resources won't be available for millions of years. Unlike petroleum, wind power is a resource that will never run dry. In Germany alone, wind power is serving as a popular alternative resource to petroleum. The demand for wind power will increase in line with the consumption of petroleum. For this reason, it is imperative that we gradually move away from petroleum and make more use of wind power or other alternative energy resources. The environmental pollution caused by petroleum is reason enough for an environmentally-conscious society to use solar or wind power. In contrast to petroleum, wind power is significantly better for the environment and offers a unique resource balance.
This topic covers issues related to energy generation, conversion, transportation and consumption and how the industry is addressing the challenge of energy efficiency in general.
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Japanese researchers describe a new implantable device no bigger than the width of a coin that can be used to control brain patterns. The device, which can be read about in AIP Advances, converts infrared light into blue light to control neural activity and is both the smallest and lightest wireless optical biodevice to be reported.
For centuries, it has been known that chemicals can change neural behavior. The field of optogenetics proved that neural behavior can also be changed with mere...26.04.2018 | Read more
In recent years, Fraunhofer HHI has developed an optical wireless communication (OWC) technology, also known as Li-Fi. Now, industry partner Sangikyo Corporation, a Japan-based telecommunications system company, has launched the first Li-Fi product – the LED Backhaul®. This is an LED-based optical link that is initially introduced as a 4K/8K Video Relay, which can achieve data rates between 100 and 750 megabits per second.
Fraunhofer HHI is one of the world's leading research institutes for the development of innovative telecommunications systems with optical data transmission....26.04.2018 | Read more
Japanese researchers have developed a new method to build large areas of semiconductive material that is just two molecules thick and a total of 4.4 nanometers tall. The films function as thin film transistors, and have potential future applications in flexible electronics or chemical detectors. These thin film transistors are the first example of semiconductive single molecular bilayers created with liquid solution processing, a standard manufacturing process that minimizes costs.
"We want to give electronic devices the features of real cell membranes: flexible, strong, sensitive, and super thin. We found a novel way to design...26.04.2018 | Read more
Nuclear power plants typically run either at full capacity or not at all. Yet the plants have the technical ability to adjust to the changing demand for power and thus better accommodate sources of renewable energy such as wind or solar power.
Researchers from the U.S. Department of Energy's (DOE) Argonne National Laboratory and the Massachusetts Institute of Technology recently explored the benefits...26.04.2018 | Read more
The Fraunhofer Institute for Solar Energy Systems ISE and teamtechnik, an international leader in production technology, report that it is now possible to connect high efficiency solar cells using electrically conductive adhesives in series production. The results of the joint research project »KleVer« show that the adhesive technology is ready for the market and can be used as an alternative to the widespread soft soldering interconnection technology. Due to the much lower process temperatures of this technology compared to soldering, temperature-sensitive high efficiency solar cells can be connected using adhesives in a gentle and material-saving process.
In industrial production, the throughput is only slightly lower than with soldering. The reliability of the adhesive connection was confirmed in tests carried...25.04.2018 | Read more
Kiel University and equipment manufacturers RENA Technologies present new approach at the Hannover Messe
Longer life times, larger ranges and faster recharging - developments such as electric mobility or the miniaturisation of electronics require new storage...25.04.2018 | Read more
Polymer light-emitting diodes (PLEDs) are attractive for use in large–area displays and lighting panels, but their limited stability impedes commercialization. Scientists of the Max Planck Institut for Polymer Research (MPIP) in Mainz have discovered the reasons for instability.
Monitor screens and smartphones that can be rolled and folded up are applications that could become possible in the future thanks to the development of polymer...19.04.2018 | Read more
Kiel research team presents prototypes at the Hannover Messe
Fast charging of electric cars requires a lot of energy in a short period of time. These peak loads lead to bottlenecks in the power grid, and are one of the...18.04.2018 | Read more
Terahertz is a key technology for non-destructive material testing. Major advantages are examinations without physical contact and the analysis of complex systems with a low contrast range, in which established methods like ultrasonic usually fail. The Fraunhofer Heinrich Hertz Institute HHI has successfully developed a cost-efficient and compact measurement system that conducts real-time measurements of the thickness of multi-layer systems for the first time, an essential technology e.g. for lacquering lines. The new terahertz measurement system T-Sweeper will be presented live at the Hannover Messe trade fair from April 23 to 27, 2018 (Fraunhofer booth C22, hall 2).
Terahertz radiation was already a major topic a good ten years ago, in connection with body scanners for inspecting passengers during airport security...17.04.2018 | Read more
Scientists from Hamburg University of Technology (TUHH), ITMO-University St. Petersburg, Menoufia Uni-versity, University of York, University of St. Andrews, Tyndall-Institute Cork, Sun Yat-sen University Guang-zhou, and Helmholtz-Zentrum Geesthacht realized a novel effect in silicon based optical waveguide chips which were particularly designed and fabricated for this nanophotonic experiment. In a special dispersion engineered photonic crystal waveguide a pump light pulse of duration of only six trillionths of a second chases a second slower signal light pulse.
When the pump pulse reaches the signal pulse, upon interaction, the signal pulse accel-erates, changes its frequency, respectively its color, and finally...16.04.2018 | Read more
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
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