GREENPOWERSCIENCE asked:
www.greenpowerscience.com LARGE FRESNEL LENS
Contents provided by Blog Kiem Tien
Home Power Videos
Homemade Energy Videos | Green Power Sources
25 Responses to “FRESNEL LENS BOIL WATER WITH SOLAR POWER”
Leave a Reply
Homemade Power- Best Windmill Plan for your homemade Wind PowerDo you intend to set up a homemade wind power plant? The most important thing to assure the success of a homemade power system is its plan. Wind power generating system using a windmill is not an exception. The best windmill plan should be including these following features: Guidance documents with illustrations: Visual descriptions with […]
- Homemade windmill – guidelines for windmills set upWhat can we do to cope with world energy crisis today? The first thing we can do right away is to save the existing power with several saving methods. Second, we can try our ways making more power using alternative energy resources. Most popular homemade solutions are wind and solar power systems. Herein after some […]
- What is a wind generator?A wind generator is equipment for producing electrical power using wind energy. The machine catches the wind power and conveys it into mechanical energy. This mechanical energy drives the move of the blades (or paddle) in a motor to produce electricity power. Nowadays wind generators contribute thousands of megawatts (MW) of electricity to network. Wind [... […]
- Switch to low carbon solar energyThe Sun is a gigantic fusion reactor which radiates energy into space. The amount of energy our planet receives in one hour from the Sun is of the same dimension as the world energy consumption in one year. This energy drives the water cycle, causes winds and provides light and heat. The use of these […]
- What is Energy?From a little girl’s smile right up to nuclear fusion, energy is the spark of change. For this is issue of ambitions, we turn to a special group of energy experts. We asked children on five continents to answer the question: What is energy? We use energy everyday, sometimes even without noticing. Everything we do […]
- Thermosyphon solar water heaterThe thermosyphon (thermosiphon ormonobloc) solar water heater is one of the simplest, most economical, and, I believe, the best type of solar water heater. It’s a passive system, meaning that it has no mechanical or electrical devices that make it work. Only the sun’s energy is needed to heat the water in the solar collector […]
- What is Solar EnergySolar energy is radiant energy that is produced by the sun. Every day the sun radiates, or sends out, an enormous amount of energy. The sun radiates more energy in one second than people have used since the beginning of time! Where does the energy come from that constantly radiates from the sun? It comes […]
- Wind Power – Alternative Renewable EnergyEnergy is essential for life. Since prehistoric times, when man used bonfires to keep warm at night or to cook food, energy has been the force behind human evolution. In its various forms, energy now moves vehicles and even rockets that will take us to new frontiers in space. Paradoxically, the use of fossil fuels […]
- Solar PowerThe use of solar power Solar power has been used in traditional buildings for long time. In recent years, however, it has provoked great interest, as the high cost and limited supply of fossil fuels becomes increasingly problematic in some developed countries. Many businesses and institutions are researching new ways to harness solar power and […]
- Best Windmill Plan for your homemade Wind Power
Blogroll
- Article Directory Online
- Article Marketing Forum
- Civil Engineer Jobs
- Civil Engineering Forum
- Diet Pills Comparison
- Green Roof a Global Trend to Save the Environment
- Green Roof System on Chicago City Hall
- Home Furniture
- Hot Job Vacancies
- Mafia Wars Club
- Online Learning Degree
- Train Dog
- Vietnam Economy News
- Vietnam News
- Vietnam Real Estate
- Vietnam Real Estate Listings
-
Recent Posts
Recent Comments
-
No, the rocks are just there so he’ll have a non-flammable surface for the demonstration. Just common sense.
sucks, he didn’t even show the fresnel lens.
he did not preheat or anything. this is legit for sure. its a freaking huge fresnel lens ppl of course it heats that fast lol
i have done this. it did heat up to boil but not that quick not even close.
did u just fast forward the video?
this video got featured?
so how many of those till i can make a cup noodles?
could have been heated to begin with
FUCK SHIT
It’s difficult to explain in a small number of words. The Wikipedia article “fresnel lens” explains it well.
A short answer is: Fresnel lens’ have curved bits, but they also have bits that are supposed to be flat. If the flat bits end up bent they don’t work very well.
they hav to be bent or else how does it magnify??
water looked to be warm already. it started smoking sort of before, or right when, he put it under the light.
Does the heated rock underneath the water kinda add some heat? Maybe?
My comment was meant to inform others who may have read your comment. Also, you never bothered to claim you were a lighting guy. As a media professional, I sincerely hope I never end up working with you, whoever you are.
Is this really a science lesson? Did anyone here NOT already know that you could do this with any kind of magnifying lens?
Wow, really? No shit dude, I read his comment wrong obviously. Do you really think if a was a lighting guy, I wouldn’t know all of this bullshit you have written here??? You really did not need to go through the process of writing all of that.
Fresnel stage lights are so named because they employ a fresnel lens. These lenses are used in other applications as well, including projection systems, other lighting systems, and solar systems. This video isn’t demonstrating a stage light, it is showing the effects of focusing the sun through a large fresnel lens.
Room temperature is my favorite temperature!!!
You can get cheap Fresnel lenses at virtually any office supply store (Staples/Office Depot has them). They’re called ‘full page magnifiers’ or something like that. They’re used for reading. The only problem is many times they come slightly bent, but not always, so check them every so often and you’ll find flat ones.
If you have more money, you can buy replacement fresnel lenses for overhead projectors or big-screen TVs.
A fresnel is a stage light, they aren’t cheap, and they are special kinds of lights, so you can’t just go pick one up.
so, where can u get one of these fresnel lenses?
That is really neat… but was the water at room temperature before you applied the lens?
FAKE!
KIDDING!!!
great vid, i would love to get one of those lenses
WITCHCRAFT I SAY!
Unless you might need them for food. There’s no problem if you use resources responsibly.
Wow, you have discovered lenses! Now maybe we can use them to magnify small objects, or correct human vision!