Archive for the ‘transportation’ Category

My Response to “The End of the Culture of the Book”

Thursday, January 22nd, 2009

A friend sent me the following:

Novelist, essayist and screenwriter Larry McMurtry makes a rare Houston speaking appearance Wednesday night when he delivers the 2009 Friends of Fondren Library Distinguished Guest Lecture.
Q: What will you talk about at Rice?
A:  The end of the culture of the book. I’m pessimistic. Mainly it’s the flow of people into my bookshop in Archer City. They’re almost always people over 40.

There are lots of high tech options for reading. I have enjoyed listening to books on tape, CD, and mp3. There are lots of classics in mp3 format on the Internet, that can be had for nothing. A long car ride is transformed by listening to stories involving dogs. I think I get more from reading at my own pace. I asked for a Kindle for my birthday. I have two nieces who both read. My younger son actually reads every book that is assigned. (Sadly, I did not when I was in school.)

It’s a question of culture. Sometimes, no matter how hard we try, a kid does not respond to a good example. However, it is well worth the effort, and most of them come around, if we are persistent enough. The persistence comes from an appreciation of what our parents did for us. And if we were ignored or maltreated, then living to be different from a bad example is almost as good as trying to live up to a good one. When kids are little, read to them until THEY are exhausted. Let them choose their favorites to be read again. You will make an indelible impression on them. Now that a grand daughter is due, we are digging out the old baby books. My younger son reads them in the same voice I used. For instance: Mike Mulligan’s Steamshovel read like Walter Cronkite. I would like to list kids books along with appropriate ages and suggestions for presentation. You cannot beat Chika-chika-boom for teaching rhythm and poetry to 2-year olds.

What goes around comes around. As I recovered in the hospital my son helped me get to sleep by reading a play out loud.

Believe me, I know it’s a struggle, but what else are we going to do for 10-30 years of retirement? You can see the universe in the pages of a book. I hope to read nearly everything Darwin, Twain, and Thoreau had to say. Then I will share the best with whomever will listen. I would like to retire and read more books in ten years than I read my whole life. A man named Garth Cate married my grandmother in the 1950’s. They were already over 60. Garth taught us to value reading and to think for ourselves. I’m hoping to be an elderly role-model in my turn. That is probably as big as goal as any I can think of.

Is an Electric Scooter in My Future?

Friday, April 4th, 2008

I have a 4 mile commute to get to my workplace. I have a teenager who has started to drive, so we are thinking of getting a third car. Riding a bike would be nice, but I am finding it hard to get motivated to actually follow through on the plan. An electric scooter makes a lot more sense. I am a little concerned about finding a low-traffic route, but I think that can be arranged.
Electric Scooter
The EVTA Z-20b electric scooter costs only $3000 delivered. It has a range of 30 miles with a top speed of 45 mph (72 kmh). They claim it takes only 2 kwh to fully charge. It seems incredible that it can travel so far on so little energy. Did they leave off a 0 or something? I just got my electric bill and I owe $27.61 for 225 kWH: ($27.61/225 kWH) = 12.27 cents per kWH. 2 kwh would cost only $0.25. How is that possible?

Let’s approach the problem another way. The motor generates 2500 Watts. At 30 mph it would take one hour to travel 30 miles.

(2500 Watts) * (one hour) = 2.5 kWH,

which is in good agreement with their claim. Assume 1 kwh of coal based electrical energy produces 0.97 kg of Co2. If traveling 30 miles requires 2.5 kWh, then the amount of CO2 generated is

(2.5 kWh)* (0.97 kg CO2/kWh) = 2.4 kg.

My Corolla gets about 30 miles/gallon. One gallon of gas generates 9 kg of CO2.

(2.4 kg / 9 kg ) * 100 = 27%.

The electric scooter and driver weigh about 227 kg, while the Corolla and driver weigh about 1270 kg.

(227 kg) / (1270 kg) * 100 = 18%.

The scooter weighs 1/5 as much as the car. Hence, a lot less energy and about 1/4 as much CO2 is generated as compared to a gas powered economy car.

Updates:

Spreadsheet showing a comparison between the EVTA z20b, the Enertia, and the Myers Motors NMG.

Video of conversion of gas powered motorcycle to all electric.

What is the matter with the US? 5% of the population burns 25% of the fossil fuel. We have allowed ourselves to be led into a war so the multinational oil companies can control dwindling oil reserves. Oil prices are well above $100 a barrel due to the continuing war and new demand from the developing economies such as China and India. Profits of the oil companies are through the roof. Truckers are striking. Airlines are going bankrupt. What really bugs me is that NOBODY has undertaken an effective plan to break the oil habit in transportation. Tesla offers a high performance electric car affordable by a handful of people with movie star incomes. As long as most of our electrical energy comes from coal, the only way electric vehicles make sense is to greatly reduce the mass. Yamaha and Honda seem to be in the development stage. They have the leverage to produce on a mass scale, but, so far, only for the Japanese market.
Enertia electric motorcycle in traffic

The Enertia Electric Motorcycle costs 4 times more then the z20b, but has superior batteries and greater power output.