Archive for September, 2010
A Glimpse Ahead by Microsoft – Productivity
Sep 30th
Productivity Future Vision: Microsoft shares its vision for the future of business technology. Video Rating: 0 / 5
Internal energy of water fall physics problem?
Sep 30th
Question by Danny S: Internal energy of water fall physics problem? The water passing over Victoria Falls, located along the Zambezi River on the border of Zimbabwe and Zambia, drops about 105 m. How much internal energy is produced per kg as a result of the fall?
Best answer:
Answer by jedd cPotential energy is equal to mgh=(1kg*9.8m/s^2*105m)=1029J.
Know better? Leave your own answer in the comments!
What alternative fuel sources can be used in trucks in the future?
Sep 30th
Question by Boong: What alternative fuel sources can be used in trucks in the future? One’s that will be better for the environment and maybe more efficient for use. Thanks
Best answer:
Answer by Kim RWell, I have a 1998 Ford F-150 pickup truck that runs on natural gas (methane). So, you could say the future is now, because obviously the technology exists for trucks (and cars) to run on a fuel other than gasoline. They can also run on propane, but that’s a lot more expensive than natural gas, at least where I am. I’m paying 87 cents a More >
Science!!!???
Sep 30th
Question by Mari: Science!!!??? My question for my science fair is: How do drinks effect teeth? I will be using eggs as teeth since they are both made up of calciuum. The sodas (Coke and and Fanta) will be poured into to transparent cups and eggs will be placed in the cups. This experiment will take 24 hours. What will be my INDEPENDENT VARIABLE? DEPENDENT VARIABLE? & CONTROLLED VARIABLE? PLEASE HELP ME AS SOON AS POSSIBLE!!! Thanx!
Best answer:
Answer by DanielEggs as teeth? Perhaps we should use coal as diamonds, since they are both made of carbon?
Anyway, the independent variable is the More >
Simpler Cell Phones and Cell Phone Plans Emerging
Sep 30th
Simpler Cell Phones and Cell Phone Plans Emerging
As cell phones continue to shrink and their functions expand, they become increasingly inaccessible for millions of those with even a mild decline in vision, motor skills, or hearing. In addition, the associated cell phone plans are so complex that anyone who would benefit from having a cell phone for limited use, such as family communication and emergency use only, are deterred from making a commitment to such services. Obviously, there are a significant number of older individuals who fall into this category of people; those who More >
Q&A: What are some disadvantages of wireless technology?
Sep 30th
Question by Molly: What are some disadvantages of wireless technology?
Best answer:
Answer by MercuriIt’s slower, less secure and more error prone than wired technology.
Give your answer to this question below!
Renewable Fuels For Alternative Energy
Sep 30th
Renewable Fuels For Alternative Energy
The Germans have really taken off when it comes to renewable fuel sources, and have become one of the major players in the alternative energy game. Under the aegis of the nation’s electricity feed laws, the German people set a world record in 2006 by investing over billion (US) in research, development, and implementation of wind turbines, biogas power plants, and solar collection cells.
Germany’s feed laws permit the German homeowners to connect to an electrical grid through some source of renewable energy and then sell back to the power company any More >
The Conditioned Prophecy of Space Exploration in Bible and Quran
Sep 30th
The Conditioned Prophecy of Space Exploration in Bible and Quran
The history of flight is the history of man’s dream to rise through the sky like a bird. Early tradition about flight and probably many early challenges involved fashioning wings out of birds’ feathers.
The narration about flying objects at the time of revelation of the Quran was myths, folklore and/or legends.
Bellerophon the Brave, captured Pegasus, a winged horse and took him to a fight with the triple headed monster, Chimera.
Daedalus made wings of wax and feathers and flew successfully from Crete to Naples.
Icarus tired to fly too high More >
Q&A: where is tidal energy used?
Sep 30th
Question by anissaaa: where is tidal energy used? In what aspects is tidal energy usually used in? and also, in what places in the world is it used in/commonly used in? would be great if someone could tell me, thanks
Best answer:
Answer by Jorge Marxits all experimental right now, but I think they are trying something on the Severn River in England. because it has a great Tidal difference due to the fact the way its shaped. but so far the costs to build the structure far exceed any benefits they will see from it
Know better? Leave More >
When it comes to exploring space even with close to star trek Technology what would be the obstacles.?
Sep 30th
Question by MABISKING: When it comes to exploring space even with close to star trek Technology what would be the obstacles.? I mean even if we found a way to bend space time and travel many light years in weeks what would be the challenges in real life not star trek. What about asteroids and other unforeseen events based our are current knowledge what would be possible?
Best answer:
Answer by VonI have no proof of this, but I’m pretty sure hitting anything in space (even the smallest particle of dust) near the speed of light would cause significant damage to a space More >
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