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  1. Haha
    Automobiles got a reaction from James Thomas Rook Jr. in As vehicle tires wear out, what happens to the trillions of microscopic particles that are shed? Do they end up in the air for us to breathe and in the water ways?   
    Wouldn't this be another good reason to provide safe mass transit options with high speed rail?
    I don't think high speed rail has this problem.
     
  2. Haha
    Automobiles got a reaction from James Thomas Rook Jr. in As vehicle tires wear out, what happens to the trillions of microscopic particles that are shed? Do they end up in the air for us to breathe and in the water ways?   
    Wow, an important question, I congratulate you for your environmental awareness!
    Yes, most certainly they do.
    It’s easy to understand. One of the fundamental physical principles of our Space-Matter-Time universe is that matter - protons and by all practical means also neutrons, the little guys every atom and ultimately objects such as tires and organisms such as human bodies consists of - are indestructible.
    In simple terms: Everything that is no longer part of your tires cannot disappear, it must be in some form somewhere else in your environment.
    Car tires must be made of materials that are naturally as unrecyclable as possible. Else, your tires would instantly start to rotten the moment they are produced and later put on your car, whether you drive around at all or not.
    The moment your car starts to move, every inch you drive, the parts of your tires that are touching the ground below them are physically sandpapered. In other words, tiny bits of your tires are torn off continuously. It is physically unavoidable. That is why your tires wear at all - almost in direct relationship to the km/miles you have accumulated with them. You cannot drive around without polluting environment with such particles.
    However, with tire-conscious driving skills (e.g. with a tire-conscious accelerating, breaking, and turning technique), you can substantially reduce unnecessary tear of your tires, hence, achieve both, a longer “life” of your tires and less tire particles you pollute our environment with per km/mile driven.
    Tire particles are non-negotiably toxic in as much as they do not naturally exist. Hence, no human organism is equipped in any way to deal with them.
    They are as tiny as tire manufacturers can manage. A fast wearing tire does not sell well. Hence, they are too light to settle down fast, they are mostly floating in the air, carried over enormous distances and spread everywhere by wind.
    Doing that, they become a serious threat to all breathing animals (including yourself and e.g. your pets), clogging up lungs exactly the same way (and in no way less harmfully) as the cinders of a cigarette you smoke would.
    Hence, tire particles are “carcinogens” (increasing risk of cancer) and before that they are serious “allergens” that trigger allergic reactions of parts of our body that are in direct contact with polluted air, particularly your skin and your entire respiratory tract.
    Note, it does not matter by what means your car drives. An electric car is in no way better in this respect. Contrary, it is likely worse as long as it is battery powered because it is slightly heavier than the same model with a gasoline or diesel engine would be, which forces tires to wear faster. Hence, you must produce more tire particles per km/mile driven.
    Tire particles are a substantial component of cinder-type toxic “micro-dust”, that actually hardly settles and travels extremely far - carried by wind. By quantity, tire particles are certainly some of the worst (yet widely ignored) man-made air pollutants.
    While floating in the air, tire particles absorb sunlight by warming up. They conserve the heat and carry it over into the night. They have no choice but to contribute to global warming, forced by the laws of physics.
    The only thing that can get tire particles out of the air for good to some degree is rain.
    However, rain does not make them disappear. They are now in the soil we produce food on and fall on trees, forests, waterbodies, etc.. They are in the water system of our planet - as toxic as ever - and way too tiny for us to have a chance to filter them out mechanically (they are in fact smaller than microscopic).
    The only way to get them out of the water for good would be chemically, extremely expensive and practically impossible. We would also have to filter rainwater falling on fields, trees, and forests. Hence, many tire particles have no option but to poison soils, end up in rivers, lakes and ultimately accumulate in oceans.
    Some water filters you may use to purify the water you drink may reduce (not eliminate) the number of tire particles you swallow, However, the rest of them are now in your water filter. Your filter, too, cannot make them disappear. What do you do with it when replacing it?
    Micro-dust - in particular also tire particles - produced by motor-vehicles has been recognized as a serious health issue in some European countries. In some areas, this has lead to speed limits. Of course, this is a lame symptom fighting approach. However it is slightly better than nothing, it reduces the maximum possible number of driving cars per hour on a given road, hence the maximum possible particle pollution per hour.
    Technology - such as cars - cannot make human life easier. There is no technological comfort whatsoever without its considerable non-negotiable price, a price that would not have to be paid without technology.
    Possible solutions:
    The only working solution that could decrease tire particle pollution globally (tire particles transported by air couldn’t care less about human political boundaries, whether in the air, on soil, or in water) would of course be less total km/miles driven anywhere on the planet.
    This can be achieved in two ways: Either by enforcing a continuously decreasing global maximum km/milage allowance per driver and lifetime (drastic reduction of individual freedom) or by producing a little less babies than people die (reducing the number of future polluters) - or, for quicker results, a combination of both.
    There is no other way to effectively reduce global environmental pollution by tire particles, unless we humans stop using cars.
    Benefit of a birth control solution would be that it does not cost any money, does not harm anyone alive, and could be implemented immediately. It would also granted reduce man-made contribution to global warming and simultaneously all other effects of all other forms of man-made pollution. As side effect, it would also simultaneously increase individual health, ease of life, and personal freedom …
    As said, as human biologist, I find your question an important one. Thank you for asking!
    - Martin Gremlich, Executive Founder, Senior Scientist at Institute for Human Biology (2015-present)
  3. Thanks
    Automobiles reacted to Melinda Mills in Is Cod Liver Oil Truly Good for You?   
    Funny! My eldest brother and I are taller than our parents and the other children.   Got cod liver oil and shark oil regularly (with orange or lemon juice). If it's a fish, can't say which fish did it.
  4. Thanks
    Automobiles reacted to James Thomas Rook Jr. in Is Cod Liver Oil Truly Good for You?   
    Based solely on empirical evidence ... I believe in it whole heartedly ... and my mother made me drink it under threat of some vague catastrophe.
    I was a small sick kid ... got every childhood disease on the list ... but grew to be a foot taller than either of my parents or ancestors.
    To this day I thank the little fishies for their total commitment to my stature.
     
  5. Like
    Automobiles reacted to SciTechPress in Molten Salt Reactor Fundamentals   
    National and international efforts to develop new sources of carbon-free energy are exploring a nuclear power concept first introduced in the 1950s and 1960s: the Molten Salt Reactor. This design is vastly different from our current light water nuclear power plant and is inspiring a fresh look at the technology. Researchers at Pacific Northwest National Laboratory are working on many solutions necessary for the design, construction, and operation of a full-scale molten salt reactor. We have expertise in radiochemistry and real-time online monitoring, as well as materials design and performance testing.
  6. Like
    Automobiles reacted to James Thomas Rook Jr. in Molten Salt Reactor Fundamentals   
    The Soviets tried this with their nuclear powered submarines ..... all works well as long as it works well .... a much hotter transfer medium, with more heat carrying capacity ... but when a pump breaks down or has to stop, the piping "freezes" and the sodium WHICH IS A METAL, freezes solid, and the entire multi-billion dollar submarine becomes a boat anchor that cannot be repaired.
    Some things CAN be done ...... but should NOT be done.
    As Elvis found out the hard way ... Peanut Butter and Banana Sandwiches and cocaine makes a pretty hot "fire" ... but it does not last the night.
  7. Like
    Automobiles reacted to The Librarian in Goodyear's Spherical Tire to Revolutionize Cars As We Know Them.   
    Goodyear presented a vision of a future tire that looks radically different from tires today — it’s a sphere.

    Goodyear unveiled its latest concept tire, Eagle-360, at the Geneva International Motor Show. The spherical, 3-D printed tire highlights Goodyear’s vision for the future and presents an inspiring solution for the long-term future when autonomous driving is expected to be more mainstream.

    According to a recent study from Navigant Research, 85 million autonomous-capable vehicles are expected to be sold annually around the world by 2035, for example. According to the J.D. Power 2015 U.S. Tech Choice Study, consumers are most concerned with ensuring safety through technology in autonomous cars.
  8. Like
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  10. Upvote
    Automobiles got a reaction from admin in Audi e-tron GT concept   
    The next electric Audi is being launched, following in the footsteps of the Audi e-tron SUV and the Audi e-tron Sportback slated for 2019. This time with a flat-floor architecture that provides for exciting proportions and a low center of gravity. 434 kW (590 hp) ensure performance fit for a sports car. The torque is transferred to the wheels via the quattro permanent all-wheel drive with torque vectoring, as you would expect for such a dynamic Audi. The performance subsidiary Audi Sport GmbH is responsible for subsequently transforming the car into a volume-production model.
    Inspiration drawn from the wind tunnel: design and body
    Flat, wide and with a long wheelbase – those are the proportions of a classic Gran Turismo. And the Audi e-tron GT concept reflects these with its 4.96-meter (16.3 ft) length, 1.96-meter (6.4 ft) width and 1.38‑meter (4.5 ft) height. The lightweight body of the four-door coupé is manufactured using a multi-material construction. Here you have a roof section made from carbon along with numerous aluminum components and supporting elements made from high-strength steel. The technology for this automobile was developed in close collaboration with Porsche. Design and character are packed full of unmistakable Audi DNA.
    Sustainable contemporary feel: the interior
    Four doors, four seats with 2.90 meters (9.5 ft) wheelbase – in the interior the Audi e-tron GT concept provides a large dose of everyday usability, coupled with a superb quality feel. The functional center of the interior is located at the front left, visibly focused on the driver’s seat. The center console, the large touchscreen in the top section and the line from the door rail and cockpit frame the driver’s workplace, perfectly incorporate the driver ergonomically with the controls and the infotainment of the Audi e-tron GT. The center console and the freestanding instrument cluster seem to float. Light colors in the top section of the cockpit and the gradually darker gradation through to the floor area create the impression of clear width. Sport seats inspired by motor racing in both rows of seats provide optimum lateral support even while cornering at speed.
    Performance and range: the drive
    434 kilowatts (590 hp) system power – that is an impressive figure for the potential of the all-electric drive. Separate electric motors are fitted to the front and rear axles. In both cases these are permanently excited synchronous motors. They put down the torque onto the road via all four driven wheels – naturally the new Audi e-tron GT concept is also a genuine quattro. An electric quattro to be precise, since there is no mechanical link between the front and rear axle. The electronic control system coordinates the drive between the axles as well as between left and right wheels. That means optimum traction and just the desired amount of slip.
    In future, the vehicle should accelerate from 0 to 100 km/h (0-62.1 mph) in around 3.5 seconds before going on to 200 km/h (124.3 mph) in just over 12 seconds. The top speed is regulated at 240 km/h (149.1 mph) to maximize the range. One feature that not all the competition can match is the option of fully utilizing the drive’s acceleration potential several times in succession. While elsewhere the drive is switched to overdrive for thermal considerations, the Audi e-tron GT concept can provide the driver with the full potential of both motors and the battery thanks to its sophisticated cooling strategy.
    The range of the concept car will be over 400 kilometers (248.5 mi), determined according to the new WLTP standard. The required drive energy comes from a lithium-ion battery with an energy content of more than 90 kWh, which takes up the entire underfloor area between the front and rear axle with its flat design. The decisive advantage of this design is the car’s extremely low center of gravity – comparable with that of the Audi R8 – which in turn decisively benefits dynamic handling. All-wheel steering translates this into a perfect synthesis of sports car-like agility and precision, augmented by superb directional stability.
    The recuperation system increases the range by up to 30 percent on Audi electric vehicles – this is essential even with such a sporty car as the Audi e-tron GT concept. The recuperation involves both the two electric motors and the electrohydraulically integrated brake control system. Different recuperation modes are combined: manual coasting recuperation using the shift paddles, automatic coasting recuperation via the predictive efficiency assist, and brake recuperation with smooth transition between electric and hydraulic deceleration. Up to 0.3 g, the Audi e-tron GT concept recuperates energy solely via the electric motors, without using the conventional brake – that covers over 90% of all decelerations. As a result, energy is fed back to the battery in practically all normal braking maneuvers. The wheel brakes are involved only when the driver decelerates by more than 0.3 g using the brake pedal. The Audi e-tron GT concept features high-performance ceramic disks which also operate with multiple extreme decelerations without compromising braking performance.
    Reduces charging times: 800-volt charging system
    The battery in the Audi e-tron GT concept can be charged in several ways: using a cable which is connected behind the flap in the left front wing, or by means of contactless induction with Audi Wireless Charging. Here a charging pad with integral coil is installed permanently on the floor where the car is to be parked, and connected to the power supply. The alternating magnetic field induces an alternating voltage in the secondary coil fitted in the floor of the car, across the air gap. With a charging output of 11 kW the Audi e-tron GT concept can be fully charged conveniently overnight.
    Wired charging is much faster as the four-door coupé is fitted with an 800-volt system. This substantially reduces charging times compared with conventional systems that are currently in use. Thus it takes around 20 minutes to recharge the battery to 80 percent of its capacity, once again providing a range of more than 320 kilometers (198.8 mi) (WLTP). The e-tron GT concept can, however, also be recharged at charging points with lower voltages, providing the driver with access to the entire charging network.
    Audi: electric offensive continues
    The brand with the four rings launched its electric offensive with the world premiere of the all-electric SUV Audi e-tron in September 2018. By 2025 Audi will offer twelve automobiles with all-electric drive in the most important markets worldwide and achieve roughly one-third of its sales with electrified models. The SUVs within this portfolio include the Audi e-tron and the Audi e-tron Sportback due to make its debut in 2019. In addition, there will be a range of models with classic body layout such as Avant and Sportback. The range will cover every relevant market segment from the compact to the full-size class.
    The Audi e-tron GT concept show car, a highly dynamic coupé with a low floor, is debuting at the Los Angeles Auto Show 2018. The technology in this automobile was developed in collaboration with Porsche; the design and character of the e-tron GT concept are packed full of unmistakable Audi DNA. The project will be developed into volume-production models by the end of 2020. Initial deliveries will be made to customers in early 2021.
  11. Upvote
    Automobiles reacted to TheWorldNewsOrg in General Motors   
    President Trump said he told GM it's "playing around with the wrong person."
    Yesterday, Trump demonstrated what being that "wrong person" could mean.

    If it becomes reality (a huge "if"), Trump's threat to cut electric vehicle subsidies could spell trouble for GM. That's because, as of right now, consumers who buy fully electric vehicles (like GM's Chevy Bolt) are eligible for a federal tax credit of $7,500 toward the vehicle. But...that credit begins to phase out after an automaker sells 200,000 eligible electric cars.
    Tesla already hit that 200,000 mark, and GM was less than 4,000 vehicles away from the cap as of Q3.
    Both Tesla and GM have pressed lawmakers to raise the 200,000-car cap and allow for more tax credits, which incentivize prospective car buyers to go electric. Bills have been introduced in the House and Senate...but neither chamber has passed a measure.
  12. Upvote
    Automobiles got a reaction from Space Merchant in Paradise Papers (Massive Document Leak)   
    Interesting that nothing ever seemed to happen with this 'massive' leak..... it sort of just died out there.
  13. Like
    Automobiles reacted to Shon-tee Adabs in Mercedes-Benz C 63 [S] AMG Coupé Edition 1   
    What is it about Benz that makes people go crazy for it?? What's in it that other car makers like Asian or American or some other European cars don't have??? ? ?
  14. Upvote
    Automobiles reacted to Money & Finance in My Volt CV Boot is worn and leaking   
    Boots - Axle - Outer
    Item Description
    A boot is a flexible, piece of rubber that protects vital components from dirt, debris and the elements. An axle is the part of the car's frame that supports the weight of the vehicle and the weight of accelerating and braking. An outer axle boot is the boot that protects the outer axle.
    Reason
    When damaged, the axle boots leave the axles vulnerable to decay and destruction which can lead to major component damage and damage of connected parts.
    Somewhat early for a 4 year old car in my humble opinion.
    Avoid General Motors and Chevrolet.
  15. Upvote
    Automobiles got a reaction from James Thomas Rook Jr. in Melania Trump wore a Colonial Pith helmet during a safari at the Nairobi National Park in Nairobi, Kenya   
    Leave her alone.
    Everyone is getting SO sensitive  about whatever she wears.
    I like the helmets... they are functional.
    Hitler wore brown.... should we ban the color brown everywhere?   Adios UPS.
  16. Haha
  17. Upvote
    Automobiles got a reaction from The Librarian in 1952 Hudson   
    1952 Hudson
    @Auto_Showcase
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