etbe

02 Jan

Low Power - They Just Don’t get it

For a while I’ve been reading the Lenovo blog Inside The Box [1], even though I plan to keep my current laptop for a while [2] (and therefore not buy another Thinkpad for a few years) I am interested in the technology for it’s own sake and read the blog.
A recent post concerns a new [...]

01 Jan

Fluorescent vs Incandescent lights

Glen Turner writes about silly people who think that fluorescent lights don’t save energy over their lifetime [1].
A compact fluorescent light (one that is designed for the same socket as an incandescent globe) is not the most efficient light source, the Luminous Efficiency page on Wikipedia [2] lists a CFL as having an efficiency of [...]

22 Dec

A Better Design for Child Seats

The current method of carrying young children (less than 4-6 years old) in cars is to have a special car seat fitted in the back seat. This has several significant problems:

It takes significant space in the back seat. The child seat is going to add at least 10cm to the length required in [...]

17 Oct

War is Bad for the Environment

I just read a nutty post claiming that Neo-Conservatism is good for the environment [1].
The first bogus claim is that Saddam had WMD and war was required because he was a despot. The fact is that the Iraqi government was always repressive, there are many factions in Iraq that don’t like each other and [...]

27 Sep

Eating Corpses

Davyd Madeley writes about vegetarianism for the environment [1] which is listed in Wikipedia as Environmental Vegetarianism [2]. He links to an article on the Huffington Post [3]. The Huffington Post article in turn links to an article on GoVeg.com about global warming [4].
Mass-produced meat is not only bad for the environment but [...]

04 Sep

George Monbiot’s Solution to Emissions Trading

I previously posted about Interesting Ideas from George Monbiot, one of which was to establish individual emissions trading.
Gyros Geier disagrees with this and cites the current emission trading schemes as evidence. There are several fundamental differences between George’s idea and the current implementations of emission trading.
The biggest flaw in current emission trading schemes is [...]

01 Sep

Carbon Geo-Sequestration

My post about Why Hydrogen Powered Cars Will Never Work has received a record number of comments. Some of them suggested that carbon geo-sequestration (storing carbon-dioxide at high pressure under-ground) is the solution to the climate change problem. The idea is that you can mix natural gas or coal gas with steam at [...]

31 Aug

Interesting Ideas from George Monbiot

Here is a transcript of a lecture by George Monbiot about climate change and what we need to do. The latest scientific evidence suggests that we need to cut emissions to zero by 2030 to avoid significant increases in the sea level over the next century, George describes some options that will form [...]

30 Aug

The Silly BMW 745h

BMW has released a new prototype hydrogen powered car. The bmwworld.com web page about it claims the cruising range is 190 miles. Added to the 400-mile range of the normal fuel tank, the 745h can go 600 miles between fill-ups. The first issue is that 10 miles are not accounted for (maybe it [...]

28 Aug

Hydrogen Powered Cars Will Never Work

One of the most important issues for a commodity fuel for vehicles is that it be convenient and safe to transport. For quite a while LP Gas has been available as a cheaper car fuel. Even with increasing petrol prices it’s acceptance is well below 100% due to extra expense in storing the [...]

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