Sibin Lazar
Engineering Student
· ThrissurIndia
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How about an exercise machine can produce electricity at home…a mediam class family uses about 5 units of current per day…yes of course they pay for it.if we can save some energy it will help poor people to use that ectricity…think about it

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Public Inventor, PhD
· AustinU.S.

Let’s do some math here: My wife just ran the N.Y. marathon along with 52,000 other people. Let’s say she burned 2,000 calories (dietary calories are really kilocalories), which would be high. That makes approximately 100,000,000 kcal, or 116,222 kilowatt hours. According to this site: https://www.eia.gov/tools/faqs/faq.cfm?id=667&t=2 that is the equivalent energy of about 63 tons of coal.

People Calories Burned (kcal) Total kCal killoWatt Hour per kCal Total energy (kWatt Hrs) kwHr / ton of coal Tons of coal
52,000 2,000 104000000 0.00116222 120870.88 1,927 62.72489881

I seriously doubt we can solve the worlds energy problems by having 52,000 people exhaust themselves for the equivalent of 63 tons of coal. Coal costs about \$50 per ton, transported. This makes a total cost of about \$3100. In other words, 52,000 people running for 4 hours can produce about \$3100 worth of energy, or about \$0.06 per person. We must understand that human beings just cannot produce energy on the scale of the energy requirements of the modern world. Even in the ancient world, beasts of burden were used for plowing and cartage for a good reason. I believe mental energy spent trying to solve the world’s energy problem is better spent trying to use existing energy resources more efficiently than attempting to harness human energy.

3 likes
Sibin Lazar
Engineering Student
· ThrissurIndia

sir can we think about what subhramanya chakravarthy has said…??
why cant we use some peizo electric materials in this machine…can it make any difference…??

Sahil Khan
Engineering student
· BaruipurIndia

sibin lazar i think me and you thinking about the same topic. yes i also want to create some machine that will be a part of our life and it will supply sufficient power by some physical work done and It think most of the poor will get benefit if we can create such things on low cost

1 like
Sibin Lazar
Engineering Student
· ThrissurIndia

thats great

Nabiha Bia
Student
· LahorePakistan

Yes, I’m also thinking of the same and I’m currently working on this project. I hope to get full advantage of this idea.
I’m dealing with piezo sensors but the problem is, their efficiency is only 2%.

Abhi Verma
Electronics Engineer
· DelhiIndia

These piezo can be placed under the road and generate electricity when anything passes over them.
That of course noy going to solve the power problems but it can reduce it. And also other ideas like that can definitely solve the power problems.

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