Wednesday, November 26, 2014

NASA Employee Says She Saw Humans Walking On Mars In 1979

By Afza Fathima | November 26, 2014 8:00 PM EST
A woman named "Jackie," who claims to be a former NASA employee, called Coast to Coast AM in the U.S. She claimed she had seen evidence of two human figures walking towards the Viking lander on Mars in 1979.



The "former NASA employee" asked the radio show presenter to solve a 27-year-old mystery for her. She claimed she had worked for NASA and that her job was to handle the downlink telemetry from the lander. The Viking lander was the first vehicle to send back pictures of the surface of the Red Planet.
She said that while she was working, she saw two people walking across the Martian surface. She continued that she and six colleagues were watching the footage of the Viking rover moving around on multiple screens when she noticed two men in spacesuits walking to the Viking Explorer from the horizon. She added the men's suits looked protective but unlike what astronauts wore.
The "former NASA employee" said she and her colleagues were maintaining the equipment when suddenly the video feed got cut off. She went on to say that when they ran upstairs, they found the door was locked and paper was taped over the door so nothing could be seen. She posed a question to the radio presenter asking whether or not the two men she saw were guys from NASA. The agency has yet to comment on the claim.
Blogs that report on UFO and conspiracy theories have backed the "former NASA employee." They claimed humans had been on Mars to polish off the lander's solar panels.Metro.co.uk wrote that this seemed off because if the humans were there, they could have filled petrol into the lander or take photos themselves. A few other conspiracy theorists claimed that in the sixties, there were secret landings on Mars. They further claimed that the Apollo landings were a cover-up for wider exploration of the solar system.
An audio recording, titled "NASA Worker Sees Men Walking Over To Viking Lander On Mars", was posted on YouTube by YouTube channel Starman Chronicles. The video has managed to get more than 11,000 views and about 16 comments as of this writing. Listen to the audio recording below:

retrived from 
http://au.ibtimes.com/articles/574079/20141126/woman-former-nasa-employee-humans-mars-1979.org#.VHaHdjHF_uw
https://metro.co.uk/2014/11/25/nasa-worker-claims-to-have-seen-humans-walking-on-mars-in-1979-4961608/

Monday, November 24, 2014

Cat3 vs Cat5 vs Cat7

CAT3 vs. CAT5 vs. CAT5e vs. CAT6 vs. CAT6e vs. CAT6a vs. CAT7

While the consumer electronics keep going increasingly wireless, many LANs still rely heavily on CAT cables to handle all the heavy lifting when it comes to transmitting data. To begin with, all Ethernet cables are of two key varieties i.e. UTP (unshielded twisted pair) or STP (Shielded twisted pair) variety. They all have the same construction structure, but vary a great deal as far as transmission frequency and throughput are concerned.
However, some terms need to be defined before any meaningful comparison can be presented:

How to interpret Ethernet cable Speed?

  • 10 Mbps = 1.2 MB / s i.e. 1 hour to download a DVD (4.5 GB)
  • 100 Mbps = 12 MB/s i.e.  1 hour to download 10 DVDs (assuming 4.5 GB average)
  • 1.0 Gbps = 125 MB/s i.e. 1 hour to download 100 DVDs (assuming 4.5 GB average)
  • 10 Gbps = 1.25 Gbps i.e. 1 hour to download 1000 DVDs (assuming 4.5 GB average)

What is Frequency?

Imagine you can only drive two cars, one passenger each, at a given time on a highway in each of the two lanes. Now you would be able to transfer more people over the same highway if you can drive the same two cars 500 trips per day compared to 250 trips per day.
Now imagine the same analogy but replace cars with bits of data. So if you can only drive two bits on a given data-line then 100 Mhz (or 100 million cycles per second) will give more bandwidth (i.e. ability to transfer data over the same line) then 50 Mhz (or 50 Million cycles per second).

CAT3

The Category 3 or CAT3 standard was used heavily in the early 90′s for wiring offices and homes. It’s still used in two-line phone configurations, but has largely fallen out of favor for wired networking thanks to the Category 5e cable’s superior performance. CAT3 can be relied on to handle data speeds of up to 10 Mbps, but no more. Its maximum frequency clocks in at 16 MHz. Like many other cabling options, it relies on copper for data and power transmission. While theoretically limited to 10BASE-T Ethernet, it can actually support 100BASE-T4 speeds by using 4 wires instead of 2 to achieve 100 Mbps throughput.

CAT5

CAT5 Cutout
CAT5 Cutout
Around 2000 or so, CAT5 overtook CAT3 as the Ethernet cable of choice for LAN networking. CAT5 uses either the 10BASE-T or 100BASE-T standard for data transmission. Using two cable pairs to signal over copper wire, CAT5 is now largely archaic and isn’t widely used for Ethernet connections. It’s rated for a maximum frequency of 100 MHz and top speeds of 100 Mbps. CAT5 uses 8P8C modular connectors to connect devices together, and can be used effectively at lengths of up to 100 meters. Today, CAT5 cable has been replaced for the most part by CAT5e.

CAT5e

Shielded Twisted Pair
Shielded Twisted Pair
While very similar to CAT5 in appearance, CAT5e introduces some new wrinkles in the equation. For one thing, CAT5e uses four pairs of copper wire rather than the two that CAT5 relies on. In addition, the wire pairs are twisted more tightly and are sheathed in heavy-duty shielding to eliminate crosstalk. Crosstalk cuts down on the speed at which a cable can transmit information. Thanks to its internal upgrades, CAT5e is capable of achieving 1000BASE-T speeds. In other words, it can handle up to 1 Gbps of throughput at a distance of up to 100 meters. As of today, it’s the most common type of cabling found in modern homes and offices for Ethernet purposes.

CAT6

Compare the Twists per Inch for CAT5 and CAT6e Cable
Compare the Twists per Inch for CAT5 and CAT6e Cable
For back-end, high-capacity networking, CAT6 supports Gigabit Ethernet needs. Supporting frequencies of up to 250 MHz and the 10BASE-T, 100BASE-TX, 1000BASE-T, and 10GBASE-T standards, it can handle up to 10 Gbps in terms of throughput. Thanks to better cable insulation, CAT6 reduces potential crosstalk even more so than CAT5e. When used for Gigabit Ethernet and below, the maximum allowable cable length is 100 meters. For 10GBASE-T speeds, the maximum cable length is 55 meters. The one major caveat of CAT6 cables is that installation can be tricky, as compatibility with 8P8C requires the use of special adapter pieces for optimal performance.

CAT6e or Enhanced CAT6

These are an enhancement on the standard CAT6 cables, as they perform much better when installed in an environment with high noise or RF interference. While better than CAT6, they are not as good as the CAT6a or CAT6 Augmented standard cables.
CAT6 Section View
CAT6 Section View
Disassembled CAT6e Cable
Disassembled CAT6e Cable

CAT6a

CAT5 CAT6 CAT3 Speed Comparison
CAT5 CAT6 CAT3 Comparison
If you’re wiring up your home or office for Ethernet for the long haul, CAT6a is the perfect choice in terms of future-proofing. When it comes to A/V protocols, CAT6a is supposed to replace HDMI in the coming years. The main difference between CAT6a and CAT6 is that CAT6a can operate at a frequency of up to 750 MHz. In addition, CAT6a is even less susceptible to interference and crosstalk. The improved specification and shielding allows CAT6a to provide more consistently reliable speeds in difficult environments. Thanks to its performance and stability, CAT6a is the preferred cable for 10GBASE-T Ethernet.

Cat 7 and Beyond

The list of Ethernet options doesn’t stop at CAT6a. There’s also a version called CAT7 that’s even more capable than all of the TP cable variants listed above. CAT7, also known as Class F cable, supports transmission frequencies of up to 600 MHz. It supports 10GBASE-T Ethernet over a full 100 meters, and it features improved crosstalk noise reduction. While CAT6e is the current standard when it comes to 10GBASE-T, it will inevitably be replaced with CAT7. Nobody knows what the future holds for Ethernet cables or what will come next in terms of format or performance. No matter what happens, expect faster and faster cables with each passing year as the technology and protocols that support Ethernet continue to improve. Finally, one thing to always keep in mind is that any custom cable can be built to suit the application on any project.
UTP and STP Comparison Chart
UTP and STP Comparison Chart
---------------
retrieved from url
http://customcable.ca/cat5-vs-cat6/

Magnus Carlsen won World Chess Champion of 2014



Saturday, November 22, 2014

The Most common problem for Magicjack plus and how to fix it



A very high probability is that the  AC Power Adapter USB Wall Charger Plug for Magic Jack Plus + get damaged and will lost dial tone, the common sign of this are list below

  • lost dial tone
  • no light on the device connected
  • will heard Eco and surround sound when You pick up the phone
  • NO incoming or outgoind call will happend 





Quick solution will be a new replacement of the ac power adapter usb, or temporary connecting the magicjack straight to the computer, using one of its usb port

for more FAQ visit
http://www.magicjack.com/faq/

Friday, November 21, 2014

Dangerous Wastes from X-Ray Operations in Medical and Dental Offices

while we are getting sick and dont even have a clue why,or where we are getting sick, I might have the idea that we are intoxicating our self

the following information is extracted from ecologic page

Dangerous Wastes from X-Ray Operations in Medical and Dental Offices

Analog photographic x-ray machines generate dangerous waste.  Medical facilities, such as doctors', dentists', and veterinarians' offices must handle these wastes in a method that protects nature and people.  Note that digital xray mchines do not produce these wastes.

Manage X-ray Fixer

Used fixer from X-ray processing is a dangerous waste because it contains high concentrations of silver–3,000 to 8,000 parts per million— and anything over 5 ppm is dangerous waste. Because of these high silver levels, it’s illegal to put used fixer down the drain, into a septic system or into the garbage.
  • To avoid generating waste fixer at all, consider switching to digital imaging.
  • Collect used fixer in a container marked “Used fixer only”. Keep fixer separate from your developer.
  • Have a dangerous waste management service pick it up for recycling or dangerous waste disposal.
  • Ask your supplier to take it back. Some will take it at no cost and reclaim the silver. Keep disposal receipts.
  • Buy a recovery system to reclaim the silver yourself. This option is not highly recommended as it most likely will not be cost-effective and function properly at all times due to maintenance requirements. To be effective and meet silver discharge limits, such systems need to have two canisters placed in a series as well as regular canister replacement, maintenance and testing. Using silver recovery units for the management of used fixer only makes economic and practical sense if the flow of used fixer is at least 2-3 gallons per week. Most dentists generate less than one gallon of fixer a month and find it more cost effective and convenient to collect used fixer for proper recycling or disposal.
Silver Recovery Canisters for Used X-ray Fixer in Dental Offices describes the maintenance required to process x-ray fixer on-site.

Manage X-ray Developer

UNUSED developer contains hydroquinone which is a toxic substance, so unused developer cannot go down the drain. Because hydroquinone is used up in the developing process, USED developer is non-hazardous and is safe to be disposed to the sanitary sewer through the sink drains or toilet.
  • Keep developer and used fixer separated. Fixer cannot go down the drain and developer will ruin silver recovery systems. Most x-ray developing machines have separate hoses or trays for these wastes, making it easy to keep them separate.
  • If used fixer and developer accidentally get mixed together, the mixture must be disposed of as dangerous waste.
  • Flush the drain thoroughly as you dispose of the used developer.
  • Do not dispose of developer, whether used or unused, to septic systems, since it may cause them to fail.

Manage X-ray Film

Used x-ray film contains silver. If  the silver concentration is high enough, the used film would be a dangerous waste. Although most film does not contain enough silver to make it a dangerous waste, it is best to collect it for silver recycling.

Manage Lead Foil, Boxes, and Aprons

Lead is a dangerous waste and should not be put in the garbage or in with red bag biomedical waste or sharps. Lead in dental offices is found in lead-foil and aprons, and in some boxes for the storage of x-ray film.

Lead Foil

  • Collect lead foil from x-ray packets for recycling.
  • In the past, some dentists melted down their collected lead foils to make fishing weights. This is not illegal but is not a recommended BMP. Dental offices should not give lead foil to patients.

Lead-lined Boxes

Dentists who use certain old-fashioned dental boxes to store X-ray film may be unwittingly exposing themselves and patients to dangerous levels of lead, according to an Associated Press story. Dental inspectors in Washington and Wisconsin stumbled onto the bizarre risk after noticing that X-ray film stored in certain boxes had a dusting of white powder.
Laboratory analysis found that the powder was almost 80% lead. Wiping off the powder didn't get rid of the lead, says Food and Drug Administration (FDA) engineer Dave Daly. To keep X-ray film fresh before placing it into patients' mouths, dentists usually store it either a safe distance from X-ray machines or in lead-lined radiation-proof containers specially treated to keep lead from leaching. That's important because lead poisoning can cause serious neurological damage, particularly in children.
However, it turns out that some dentists use old-fashioned boxes--often made of wood, shoebox-sized--with an untreated lead lining to store X-ray film. Washington and Wisconsin alerted the FDA that hundreds of such boxes may be in use, Daly says. One dentist told a state inspector that he used his for nostalgic reasons: his dentist father had passed it down.
The FDA issued a nationwide alert telling dentists to throw away X-ray film stored in such boxes. While no illnesses have been reported, "in may cases there are highly dangerous levels of lead on the films, enough to potentially cause serious adverse health effects in patients and health care professionals," the alert warns.
The FDA cautions that the boxes need to be disposed according to each state's safe-lead regulations. The boxes cannot be converted for other use.

Lead Aprons

When aprons are no longer usable, they must be disposed of as dangerous waste due to their lead content. Keep them out of the landfill and the biomedical waste red bag. Ask your supplier or the original manufacturer if they will take them for recycling or proper disposal. If this is not possible, dispose of worn-out aprons as dangerous waste.
The Hazardous Waste Service Providers' Directory lists vendors who deal with dangerous wastes, such as lead and silver.

Related information

Dentists reminded to keep mercury out of their waste water is an Ecology press release from 2005.Amalgam Separators is a section on the Web site of the American Dental Association.
Fact Sheet - Mercury Use in Dental Amalgam from the Interstate Mercury Education and Reduction Clearinghouse (IMERC).
Mercury-Dental Topic Hub™ from the Pollution Prevention Resource Exchange offers pollution prevention resources to dental offices.
 Retrieved from http://www.ecy.wa.gov/mercury/mercury_dental_xray.html

Thursday, November 20, 2014

Toyota launches the Mirai, a hydrogen car


MotoramicView gallery
Toyota Mirai hydrogen fuel cell car


There are futuristic-looking cars, then there are cars that are actually futuristic. The 2016 Toyota Mirai is definitely one of the latter, soon to take its place in history as the first car to bring hydrogen fuel-cell technology to the masses — something you can buy, keep and pass on to your kids when you get old, who by then, will laugh at the idea that at one point, someone thought it was futuristic.
But for now, the Mirai is the future — literally: the name means “future” in Japanese — and Toyota hopes that it will follow in the treads of the successful Prius (whose name means “predecessor” in Latin, incidentally). And this so-called future will become the present starting in the third quarter of 2015.
Like the Prius, the Mirai is not an overtly beautiful creature (yes, that’s some understatement) but it was styled quite deliberately to break the mold. “It’s no secret that when we launched Prius, we decided that making it look different than any other car on the road was a risk worth taking,” said Satoshi Ogiso, Managing Officer of Toyota Motor Corporation. “Prius styling was distinctive then and still is today. We think Mirai will be as well. If the name of your car means ‘the future,’ it had better look futuristic.” 
Still, the Mirai has a face only an aerodynamicist could love. A clone of the FCV Concept that Toyota trotted around to auto shows in 2013, the Mirai is roughly the same size as the Camry Hybrid, with 2.5 inches more height and an aerodynamic underbody that’s an inch closer to the ground. Like the FCV Concept, the Mirai has gaping triangular outboard air intakes, vertical turn signals, “floating” hood and roof panels and four menacing-looking LED headlamps on each side.
For the record, Ogiso has an explanation for the styling: "The sides of the car are meant to convey the transformation of air into water, with flowing door profiles. The rear uses a catamaran shape representing water flowing under and through the body.” Oxygen in, water out: not unlike how fuel cells work. And apparently the Mirai needs a lot of oxygen.
All Mirais are monospec and include Toyota’s latest and greatest EnTune system, navigation, and a hydrogen station locator app. Packaging for the various fuel cell and hydrogen storage components limit the size of the trunk, and the need to keep gross vehicle weight down dictated a fixed center armrest between the two rear seats, limiting total passenger count to four. 
The Mirai’s only option is a so-called “Power Takeoff” system, which essentially is a DC outlet in the trunk from which up to 60 kWh of power can be drawn off the fuel cell to power to one’s home in case of a outage or emergency. That’s enough to power an average household for five or six days, according to Toyota.
The star of this show, of course, is the Mirai’s fuel cell powertrain itself, which represents a quantum leap in mass reduction and power output over the powerplant used in the Highlander-based FCHV pilot vehicles in service since 2008. Mounted beneath the front seats and weighing just 123 pounds, the unit contains 370 cells. Output density rises to 3.1 kW per liter (or 2.0 kW per kilogram measured by mass) while requiring far less of a pricey platinum catalyst. With the help of a boost converter, the fuel cell is compatible with Toyota’s hybrid synergy drive system, so the Mirai’s front wheels use the same AC synchronous electric motor with 151 hp and 247 lb-ft of torque found in certain Lexus hybrids, and the nickel-metal hydride battery pack from the Prius.
A maximum of 5.0 kilograms of compressed hydrogen can be stuffed into the Mirai’s two 10,000-psi carbon fiber-reinforced tanks, one of which is situated under the rear seats and the other one tucked between the rear wheels. Fill them to the brim, and range tops out somewhere around 300 miles, says Toyota, a figure that could be even greater if Toyota wanted to add another tank.
But doing so would add more weight, and with its porky 4,079 pounds — 594 pounds more than a Camry Hybrid — the Mirai needs no more mass. As it stands, Toyota says the Mirai can hit 60 mph in nine seconds flat, and eventually tops out at 111 mph. Oh, and refueling should take about five minutes at a 750-bar refueling pump, not much more time than it takes to gas up a normal car. 
The MSRP for the 2016 Mirai has been set at $57,500, but up to $13,000 in federal and California state tax incentives could potentially drop the price below $45,000. Toyota expects that only 10 percent of buyers will opt to actually buy the Mirai, with the other 90 percent likely to choose Toyota’s $499/month lease (with $3649 due at signing), which includes 24-hour fuel cell-savvy concierge service, roadside assistance, three years of complimentary maintenance and free fuel. Those who opt to own the Mirai will also get eight years/100,000 miles of warranty coverage for fuel cell components.
Only 700 Mirais will be imported in its first year, scaling up to a still-modest 3,000 by the end of 2017. Sales will be limited to certain regions in California, where a fledgling hydrogen infrastructure is slowly but steadily growing, and possibly some states in the Northeast as its infrastructure develops. (More on that in future posts.) Toyota is coy about predicting what will happen after 2017; by then, the Mirai will have much more competition, dozens more stations will come online, and the hydrogen fuel suppliers will also have established pricing policies, which, based on experts we talked to, are expected to be about $10/kg, or about $50 per fill-up.
Several automakers have tried to lease hydrogen fuel cell vehicles in limited numbers, with limited effect, due to the chicken-and-egg problem of filling stations. If the Mirai breaks that logjam, Toyota could once again, as it did with the Prius, rule the roost

https://autos.yahoo.com/blogs/motoramic/toyota-launches-the-mirai--a-hydrogen-car-you-can-buy-%E2%80%94-sort-of-233839110.html