A Million Green Ideas

Question by Thunderforce: will majoring in biomedical engineering still allow me to work on alternative energy technologies?


I am a freshman undergraduate majoring in biomedical engineering. I’d like to know if i can stay in this major and still work on alternative energy technologies. I’m doing BME because i want to help people but i’d also like to be involved in green technology. I’m actually thinking of switching majors to either electrical or mechanical engineering. but i’d like some opinions from people to better help with my decision. Please leave me some good feedback and no wise remarks. thank you.

Best answer:

Answer by PE2008
It’s generally a mistake to take Biomedical Engineering at the undergrad level. There aren’t enough jobs at the Bachelor’s level, and many Biomed Engng grads have to take jobs for which they are not optimally suited.

Better you take good basic Electrical Engineering or Mechanical Engineering (or Engineering Physics) in undergrad, then do the Green/BioMed stuff in grad school.

What do you think? Answer below!

Question by Lindsey G: What will it take for Americans to realize that we need to work even harder to find alternative energy?


It takes a war for oil, sending our troops to die for oil, gas prices skyrocketing, proposing to drill and destroy Alaska (one of the most beautiful places in the U.S. who’s ecosystem is already suffering from warming due to using gas), global warming and middle eastern powers and terrorists having something we need from them….all these things we do for oil. Isn’t it time we wake up? We need to work harder to find alternative energy!

Best answer:

Answer by Sophie
McCain and Palin will do it. Palin was doing it by herself up in Alaska. She knows that will change our foreign policy and economy more than anything our useless Congress could do.

Know better? Leave your own answer in the comments!

Question by Michael Milam: How can a photovoltaic solar cell work in a circuit?


I want to know how I can use a photovoltaic solar cell in an electronic circuit.

Best answer:

Answer by step ladder
As a resistor whos value is varied by light intensity.

Give your answer to this question below!

Question by Andy: Environmental risks you’re exposed to at home, work and in your lifestyle?


I need a little help in coming up with a couple of environmental risks, or factors per say, in each of these 3 categories.
1. At home (or neighborhood)
2. At school or the workplace
3. In one’s lifestyle (behavior and actions)

Thanks!

Best answer:

Answer by ?
The greatest risk is stupid teachers sending students into hysteria with these assignments that make no sense. Take math.. forget the social studies.

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Question by Pal: How can I get my house converted to work on solar energy and is it expensive?


I saw an episode in extreme makeover home edition were they built a house for a family and they used solar energy to power the house I like that not just because is good for the envirorment but because I think is better for us too, If we take care of the Earth we live in I think is going to last more.

Best answer:

Answer by steyr
http://www.jc-solarhomes.com/solar_energy_facts.htm

What do you think? Answer below!

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Question by Bad M: What do Californians think about Al Gore receiving the Nobel Peace prize for his work on global warming?


According to the American Lung Assoc. the top 5 American cities for the worst smog/ozone are all in California (at least according to their 2005 data). What is your take on Al Gore receiving this prize?
Why is there no money in S. California to clean up this mess?
hey I like the mounains right where they are!

Best answer:

Answer by roadhazzards
Like PT Barnum said there is a sucker born every minute.

What do you think? Answer below!

Question by ginger_jj: How many joules of solar energy fall on your back as you work on your tan for 0.70h?


The intensity of electromagnetic waves from the sun is 1.4 kW/m^2 just above the earth’s atmosphere. Eighty percent of this reaches the surface at noon on a clear summer day.
Suppose you model your back as a 27cm & 51cm rectangle.
How many joules of solar energy fall on your back as you work on your tan for 0.70h?

Best answer:

Answer by WhatGoes Around Comes Around
80% of 1.4 = 1.12 kW / m²

Area = 0.27 * 0.51 = 0.138 m²

Power = 1.12 * 0.138 = 0.154 kW

Energy = Power * Time
Time = 0.7 * 3600 = 2520 seconds

Energy = 0.154 * 2520 = 389 Joules

Give your answer to this question below!

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Question by gsparks61: do the solar windowscreens really work?


i live in a mobile home,wondering if the solar screens really help with keeping heat out,and lower electric bill?

Best answer:

Answer by freakboynv2000
here in vegas they are popular. i think it helps some. you might not notice as big of a gain as the trainer probably isn’t all that well insulated.

Add your own answer in the comments!