Tag Archives: blade

Zero Waste: shave with an electric razor or a real blade

I’m willing to sacrifice a clean shave for the good of the planet. I have to if I want to be zero waste. All the options on the market involve disposable razors, the kind you throw-out after a week. It’s a minor thing but every bit counts when you’re trying to be zero waste. At a certain point all you have left to cut-out are the little things.

I’ve considered investing in a straight blade, barbershop style. One that I could sharpen myself and get the closest shave of my life. It sounds manly and tough, like teaching myself about knives will earn a boy scout badge. But I grew up in a peace-loving, near-hippy family and so I’m not used to any sort of weapon.

And my first alternative was already lying around in the bathroom – an electric shaver. I cut my hair with it and decided to try a shave with it. It’s not exactly the closest shave but it does the job. And I collect all the shavings for the compost. They disappear immediately in there, not like an ear of corn which take forever to disintegrate.

The only problem with this method is that it uses electricity, but I’m okay with that. I see the world moving towards all-electricity devices running on renewable energy. And since the power company allows me to pay more for renewable energy, it feels ok.

But I still look forward to earning that man badge and become the first person I know to shave with a real blade.

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Men, have you ever shaved with a real blade?

Ladies, do you have a way to avoid using a disposable razor?

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Wind turbines are going big, real big – latest one is the size of a 747 airplane

Right now wind is leading the renewable energy surge and records for the largest turbines are being set. Just how big is the largest one? Siemens is creating a single blade that is 225 feet long, basically as wide as a 747 airplane.

The manufacturing process is incredible, from Wired UK:

Siemens manufactures the mammoth B75 blades in one, smooth, streamlined piece — with no joints — using its IntegralBlade process. The technique — which requires glass fibre-reinforced epoxy resin and balsa wood to be cast in a mould — renders the blades steadfast and less likely to develop faults while being beaten with 181 tonnes of air energy every second, when wind speeds are ten metres per second (30 mph). The huge strain it is put under means no blade can leave the factory without being carefully inspected for even minor cracks.

 

The size of these things is almost unimaginable, like trying to picture three 747′s spinning around a massive pole. They will also have to shoot up into the sky several hundred meters.

According to Siemens, when fully constructed this mammoth would generate 6-megwatt’s, while another group is looking into 20-megawatt versions!

 

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