All-electric cars may be worse for environment


The key is where the source of the electricity all-electric cars. If it comes from coal, the electric cars produce 3.6 times more soot and smog deaths than gas, because of the pollution made in generating the electricity, according to the study that is published in PNAS. They also are significantly worse at heat-trapping carbon dioxide that worsens global warming, it found.

The study examines environmental costs for cars’ entire lifecycle, including where power comes from and the environmental effects of building batteries.

“Unfortunately, when a wire is connected to an electric vehicle at one end and a coal-fired power plant at the other end, the environmental consequences are worse than driving a normal gasoline-powered car,” said Ken Caldeira of the Carnegie Institution for Science, who wasn’t part of the study but praised it.

But if the power supply comes from natural gas, the all-electric car produces half as many air pollution health problems as gas-powered cars do. And if the power comes from wind, water or wave energy, it produces about one-quarter of the air pollution deaths.

Hybrids and diesel engines are cleaner than gas, causing fewer air pollution deaths and spewing less heat-trapping gas.

But ethanol isn’t, with 80 percent more air pollution mortality, according to the study.

“If we’re using ethanol for environmental benefits, for air quality and climate change, we’re going down the wrong path,” Hill said.

via All-electric cars may be worse for environment.

Product Safety Recall: Lenovo (Australia & New Zealand) Pty Ltd—Linetek LS-15 Power Cord for Use With Laptop Devices


Product description “LS-15” labeled AC Power cables.

The exposure is limited to a single part number (p/n 145000589) for Australia, New Zealand and Fiji. A sticker attached to the cord with the name Linetek on it will show a revision date ‘REV-001005’. The female connector has the imprint ‘LS-15 Linetek’

What are the defects? In some instances the “LS-15” labelled connector’s electrical insulation may degrade over time with the potential to overheat and burn.

via Lenovo (Australia & New Zealand) Pty Ltd—Linetek LS-15 Power Cord for Use With Laptop Devices.

▶ Dangerous GU10 LED Spot Light is Cheap and Bright but could Kill You – Seriously – YouTube


This GU10 LED spot light is cheap (£3 including postage) and bright. But it’s also lethal! There’s a 50% chance of putting live mains within a few microns of the metal casing (which is what you’ll be holding when you insert it) and there’s no earth to protect you. It’s like playing Russian Roulette with 240v AC mains. This sort of thing gives new technology a bad name. Avoid it if you want to stay alive.

via ▶ Dangerous GU10 LED Spot Light is Cheap and Bright but could Kill You – Seriously – YouTube.

UNSW’s solar cell achieves 40% efficiency :: ElectronicsOnline


“This is the highest efficiency ever reported for sunlight conversion into electricity,” UNSW Scientia Professor and Director of the Australian Centre for Advanced Photovoltaics (ACAP) Professor Martin Green said.

“We used commercial solar cells, but in a new way, so these efficiency improvements are readily accessible to the solar industry,” added Dr Mark Keevers, the UNSW solar scientist who managed the project.

“The new results are based on the use of focused sunlight and are particularly relevant to photovoltaic power towers being developed in Australia,” Professor Green said.

via UNSW’s solar cell achieves 40% efficiency :: ElectronicsOnline.

Mortality and Morbidity: Children’s Accidents and Injurie Australian Social Trends, 2005


Boys are more likely than girls to experience and die as a result of an injury. While half of all children are boys (at 30 June 2001, 51% of 1-14 year olds were boys), nearly two-thirds of injury deaths for this age group between 1999 and 2003 were boys (62%). This difference between girls and boys in relation to injury and deaths exists regardless of the child’s age, and across all OECD countries.

via 4102.0 – Australian Social Trends, 2005.

 

Manufacturers not the only party responsible for safety of garage doors | Architecture And Design


The Australian Garage Door Association AGDA is lobbying government … to enforce full mandatory compliance to Australian and New Zealand ANZ standards for all parties involved in this area of (garage doors) construction. “.. it is in fact the responsibility of the installers, builders and designers of buildings to ensure compliance in relation to garage doors, not just manufacturers,” said Fraser.

In addition to lobbying the government for non-compliance, the AGDA is calling for additional safety mechanisms in automated garage doors to be made mandatory. They also want to enforce secondary entrapment protection for automatically operated garage doors under ANZ regulations

via Manufacturers not the only party responsible for safety of garage doors | Architecture And Design.

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