Earth's ecosystems have always been changing, with species mixing and mingling thanks to migrations, freak events, and slow creeping expansions. But since we humans arrived on the scene, we've put things into fastforward, moving plants, animals, and otherorganisms around the globe whether intentionally or not. Once in a while, one of these transplants might have an evolutionary quirk like deadly poison, a lack of predators, or a voracious appetite that unexpectedly helps it dominate its new territory. Earthworms, for example, were introduced into North America by Europeansettlers and have been inching across the continent ever since tilling soil and improving crop.
Yields as they go. But if a newcomer starts to harm us or a part of the environment we care about, we'll call it an invasive species. Technicallyspeaking, humans aren't invasive, because we don't usually consider ourselves an ecological threat to. ourselves. But other species certainly are. One way they get our attention is by costing us money. A lot of money. The US spends billions of dollars fighting invasive weeds like the pretty but pesky yellow rocket flower that chokes fields and creeps onto golf coursesand lawns. Other invaders wreak so much havoc on fragile ecosystems that we can't help but notice even.
If billions aren't at stake. For example, the yellow crazy ant a likely native of Southeast Asia has been eating many beloved and endangered Australian creatures since its arrival several decades ago. These little ants feast on nearly anything and everything in their path insects, amphibians, birds, small mammals, even the famous red crabs on Australia's Christmas Island, which used to keep the island's undergrowth in check without them, the ecosystem has veered into chaos. But noticing invasive species is easy dealing with them is the real challenge.
When we brought rabbits to New Zealand for food and fur, they escaped and bred like.well.rabbits, overrunning the country. So we introduced ferrets to control the rabbits but they too spread like wildfire, generally ignoring the rabbits while gobblingup rare species like the now nearlyextinct kakapo. New Zealand is still overrun by both furry fiends, and this is just one ofmany wellmeaning attempts at biological control that have ended in disaster. The best way to fight an invasion is to first arm ourselves with knowledge Instead of trying to kill Australia's yellow crazy ants by just spraying insecticide everywhere, we've learned.
That the best approach is a yearlong multistep assault that specifically targets antriddled areas at the times when the egglaying queens are mature and susceptible to our treatments. Then we spread two kinds of bait for the workers to bring back to the nest one kills, and the other sterilizes the queens. Neither poison is perfect, but executed together, they can knock out a whopping 99 percent of the population. But with many invasives, even 99 isn't enough, because it doesn't remove whatever advantage gave the invaders an edge inthe first place. So unless we honesttogoodness get rid of.
Every reproductively active individual, eventually they'll return as vigorously as before, keeping us constantly on our toes. We really just need to stop moving potential troublemakers around in the first place, leaving bunnies where they belong and making sure ants and earthworms don't stow away in ships, cars, or excavators. But in a modern, globalized world, this is easier saidthan done. For those species that we do accidentally or intentionally let loose only to see them spread wildly out of control, our best hope is to learn as much as we can about their.
Solar Panels Why Paul Chose Canadian ELPS Solar Panels!
Wow, what a view of Niagara Falls! I have several boarders in the house and they obviously use a fair bit of power and it's just generally high! As power goes up or costs go up, I was expecting my power bills to increase quite substantially. My power bills were approximately $2,000 $2,500 per quarter prior to my decision to actually look at solar. Ahhh... firstly I went looking around at different solar companies. I did have a small system put in, 1.5kw system to get a feel for solar. That really didn't even touch my.
Power bill. I ended up looking around and I ran into Michael, Michael Russo. Michael was really good about... he said down with me and actually worked out what power I was using, what power I would need, what sort of panels I would need to actually eliminate that. So it wasn't a matter of looking at cost, it was a matter of looking at reduction of that whole power bill. So it was... coming at it from a different angle that most people do.
They come and say it's going to cost you 'X' to put these in or it's going to cost you 'Y'. Michael looked at it from a different perspective and said, 'Well you're using 60kws, let's put in enough panels to get rid of that 60kws'. I did a lot of website searching and a lot of looking at different types of panels. The Canadian ELPS panels turned out to be one of the better panels that are around. And I was quite happy with Michael and all his suggestions and all the work that he did for me.
Well my understanding is that they... they're efficiency, the amount of power they actually output is greater than a normal panel... than most panels. I knew fully what they were doing today. I was really glad I was sitting here watching when they unloaded the 50 panels and I was thinking... 'You Beauty!'. There's a lot of horror stories as I said out there, that I'm hearing. But I've got confidence in Michael and his team, he seems to have a very good customer service base,.
Has all the information that I needed and I can support that by my own due diligence, in checking up on the internet and all that sort of stuff. Well, the quality of panels... I've checked them out. They've got triple insurance on them so they're covered for any breakage or anything like that, not only by Canadian ELPS but by three different insurance companies. So with this system now, I would expect that I would make quite considerable savings as time goes by and it doesn't really matter how much electricity goes up or down because.
EnergyShouldBe News November, 2012
R. Buckminster Fuller said You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete. Welcome to EnergyShouldBe News November, 2012 Electricity. Researchers have made butterfly wing material through the use of lasers. that can mimic the iridescent colors of a butterfly wing and is also waterproof. A tidal power turbine is now generating power off the coast of Maine at the mouth of the Bay of Fundy. There is a short animation with the newspaper article that might be worth checking out.
This is a prototype of a deep ocean current generator that is one megawatt in size. It turns out that deep ocean currents are very steady and stable. The company is considering a spot a few miles off the coast of Florida for their first installation. California has set a new record of eleven thousand homes for a total of sixty six megawatts of home solar installations for the third quarter of 2012. A study shows that solar panels worked just fine in snowy areas. If the panels are tilted the snow slides right off and the sun.
Reflects off the snow and increases the output of the solar panels. It turns out that just like for lawns and cars and kitchens we'd like to keep up with the Jones's for solar, too. The study goes into depth on why people install solar. Transportation. Copenhagen may be the best city in the world for bicycles. As this author noted As I zip along the beautifully maintained bike lanes it strikes me that I've never had a city biking experience quite like this. Not only do I feel totally safe and secure but I'm able to get to my destination faster and.
at a fraction of the difficulty and costs than if i were driving a car. In Copenhagen they spend more than twenty percent of the transportation budget on bicycles. As you can see from this picture, in the background in some places the bikepaths are raised up off streetlevel, and in other places where they are at street level they're painted solid blue and you can see that in the foreground. The bicycles have separate traffic lights and traffic lights are timed so that a bicycle con go as many as fourteen traffic signals without.
Stopping. China dominates the mining and production of rare earth metals. These are used in tutorial displays and in some electric vehicle motors. Large price increases for rare earths have caused manufacturers to look at alternatives. Now Tesla currently manufactures its motors without rare earths. But Ford and Chevy and others are finding ways to reduce rare earth used in their motors. Miscellaneous. These are glass roof tiles. They have the same shape as normal clay tiles but they have this very light and airy look. And, solar panels, either electric or for solar heating can be installed.
Solar Energy in Manhattan Beach, California by Suntrek Industries
Manhattan Beach Solar Energy from Suntrek Industries has demonstrated since 1991 they are the leader in solar energy systems technology. For residential solar electricity, Solar pool heating, Solar water heaters and Commercial Solar Power. Solar brings value to a Community that is unsurpassed. Today we have a proven reliable technology to power our daily lives with the sun. Just imagine how different your world will be living in a Solar Home powered by the sun with little reliance on utility power. Since 1991 Suntrek Industries has been a leader in solar energy manufacturing and system design.
Where Does the Solar System End
I'm Caitlin Hofmeister and welcome to SciShow Space. As is often the case in astronomy, a seemingly simple question does not necessarily have a simple answer. For example, where does our solar system end As in where does our stellar neighborhood stop and where does the vast expanse of space start This question actually caused quite a kerfuffle in the summer of 2013 when many news outlets proclaimed that the Voyager 1 spacecraft, launched in 1977, had finally and officially left the solar system. While it's clear that Voyager has traveled farther than any humanmade thing before, it turns out you can't actually.
Say once and for all that it has crossed out of our solar system because there are different ways of deciding where our solar system actually ends. Space turns out it's pretty complicated. So there are seven other planets, many dwarf planets, countless asteroids and comets, and, of course, Earth all orbiting the Sun, and we all have one thing in common that makes us members of the coolest club in the cosmological neighbourhood our gravitational attraction to the Sun. By most thinking, just orbiting the Sun is an easy and intuitive way to define.
The Solar System and its limits. But, the Sun's gravitational attraction starts to fizzle out in part of the Solar System called the Oort cloud which is an enormous and odd collection of icy objects orbiting the Sun 150 trillion kilometers away. That's 100,000 times farther from the Sun than we are. So that must be where the Solar System ends, right Well, yes, but that's not where Voyager is. If we use the Oort cloud as our definition of the boundary, then Voyager actually has a really, really, really long way to go. It.
Won't even enter the cloud for another 300 years, and it won't pass out of it for another 30,000. By then I'll just be, like, a preserved head in a glass jar if there are glass jars. But this isn't even the threshold that got the media's knickers in a twist. Another way of defining the Solar System is not by the Sun's gravitational influence, but by the influence of its radiation. Consider what's outside the Solar System. The local interstellar medium, as it's officially known, is made up of matter gas and dust and particles that.
Hang out in the areas of space in between star systems. Now the Sun pushes this interstellar medium out of the way with a highspeed stream of charged particles called the solar wind. This stream flows in all directions from the Sun, forming a bubble called the heliosphere. The boundary of this bubble is where the solar wind can no longer overpower the outside pressure of the interstellar medium. And as the solar wind begins to interact more with the interstellar medium, it slows abruptly forming a shock wave known as the termination shock. Just.
Beyond the shock wave, the solar system kind of piles up suddenly like a driver slamming on the brakes and sending everyone flying forward. The area where this radiation bunches up is called the heliosheath. This continues until the pressures of the solar wind and the interstellar medium balance out forming the final boundary known as the heliopause. So it's through this last border, the heliopause, that Voyager crossed in August of 2013, putting the spacecraft into what one astronomer called a mixed transitional region of interstellar space. Of course, that doesn't have the same ring to it as Voyager has left the.
Building. So while we know Voyager 1 has entered interstellar space, saying it's left the Solar System is actually misleading. It still has a rough ride ahead of it through the Oort cloud and it's going to be feeling the Sun's gravitational pull for tens of thousands of years. So now you know what the experts know and you can sit back and enjoy the rest of Voyager's journey, and we'll give you an update in about 300 years. Thanks for watching this episode of SciShow Space and thank you all to our Subbable subscribers.
OutBack Power FLEXmax 80 Charge Controller
Hi my name is Isaac and I'm with Wholesale Solar. I have here the Outback Flexmax 80 Amp Charge Controller. This charge controller is exactly like the 60 Amp but it has a built in fan on top to help keep it cool when you're running the maximum amount of amperage through it. This is a maximum power point tracking charge controller. It allows you to get the most out of each and every solar panel, whether you have a 12 Volt, 24 Volt or 48 Volt offgrid system. Give us a call and we can tell you.
Solar Energy Guide For Beginners Roof Top Solar Panel Installation.
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