How Beneficial is the Sharing Economy?

September 26, 2014 by kris de decker Filed Under: Economy, Professions, Work

“Uber is part of a new wave of corporations that make up what’s called the “sharing economy.” The premise is seductive in its simplicity: people have skills, and customers want services. Silicon Valley plays matchmaker, churning out apps that pair workers with work. Now, anyone can rent out an apartment with AirBnB, become a cabbie through Uber, or clean houses using Homejoy. But under the guise of innovation and progress, companies are stripping away worker protections, pushing down wages, and flouting government regulations. At its core, the sharing economy is a scheme to shift risk from companies to workers, discourage labor organizing, and ensure that capitalists can reap huge profits with low fixed costs.”

Read more: Against Sharing. Thanks to Sarah.

Hydraulic Tiles

September 19, 2014 by kris de decker Filed Under: Random, Tiles

hydraulic tiles 2

Hydraulic mosaic is a decorative floor tile with carpet style patterns, made from pigmented cement. Invented halfway the nineteenth century in France, it was used mainly around the Mediterranean, in the Middle East, and in Central and South America. Hydraulic tile was a transition material between the pre-industrial and the industrial era, between craft processing and mass production.

Although their use diminished greatly since the 1960s — due to the arrival of cheaper mass-produced “terrazzo” tiles — hydraulic tiles are still made in the traditional way, both for the restauration of old buildings and to put them in new buildings.

[Read more…]

The Beauty of Organic Farming

September 18, 2014 by kris de decker Filed Under: Farming

the beauty of organic farming picture by Lloyd Kahn

It’s not an advantage that’s often emphasized, but organic fields are much more beautiful than monocultures. The picture above was shot north of Santa Cruz, USA. Photographer is Lloyd Kahn, author of the fascinating Shelter blog.

Cycling: Why Tunnels are Better than Bridges

September 11, 2014 by kris de decker Filed Under: Bicycles, Bikes, Pedal power, Random, Roads, Travel
  • Tunnels offer faster journeys than bridges due to less climbing. Steeper gradients can be used than with a bridge because cyclists going into a tunnel first ride downhill and pick up speed which can be used to climb back out of the tunnel.
  • Tunnels have a smaller height difference than bridges. Only need clearance for the height of a cyclist, not for trucks or trains plus electric lines.
  • Tunnels take up less space than a bridge because inclines are shorter.
  • Tunnels are easier to fit into an existing landscape.
  • Tunnels offer protection from wind and rain.
  • A possible disadvantage is low social safety. It is important that cyclists can see out of a tunnel before they enter it. There should be no turns within the tunnel, no-where for a potential mugger to hide. Obviously tunnels should also be well lit.

why tunnels are better than bridges

Picture: All crossings in Assen [The Netherlands] can be used without slowing down. This is one of the many cycle and pedestrian crossings of a major road. Four metre wide cycle-path, separate pedestrian path, gentle inclines, well lit and we can see right through for good social safety. Built in the 1970s, well maintained: last resurfaced 2012.

Quoted from a blogpost at “A view from the cyclepath”, which discusses Dutch standards for cycling tunnels and bridges.

Games on Disc More Energy Efficient than Downloads

September 11, 2014 by kris de decker Filed Under: Computers, Energy, Entertainment, Gadgets, Information age, Shopping, Software
videogame 2

Assasin’s Creed IV: Black Flag

“This research investigates the carbon footprint of the lifecycle of console games, using the example of PlayStation 3 distribution in the UK. We estimate total carbon equivalent emissions for an average 8.8-gigabyte game based on data for 2010. Two delivery scenarios are compared: the first examines Blu-ray discs delivered by retail stores, and the second, games files downloaded over broadband internet.”

“Contrary to current consensus that downloaded data will result in lower carbon emissions than distribution by disc, producing and distributing an average-sized game by Blu-ray disc in 2010 resulted in approximately 50 to 90% less emissions than downloading. The estimated carbon emissions from downloading only fall below that of Blu-ray discs for games smaller than 1.3 gigabyte. The study findings serve to illustrate why it is not always true that digital distribution of media will have lower carbon emissions than distribution by physical means when file sizes are large.”

[Read more…]

Trolleytrucks in Los Angeles

August 18, 2014 by kris de decker Filed Under: Cargo, Random, Travel, Trucks

siemens trolleytruck“A project testing a new way to power trucks with electricity is moving forward along selected highway lanes near the Ports of Los Angeles and Long Beach.”

“The South Coast Air Quality Management District, which is the air pollution control agency for all of Orange County and the urban portions of Los Angeles, Riverside and San Bernardino counties, has selected a company to install a catenary system.”

“This is essentially overhead electrical lines that supply trucks with electric power, similar to how modern day trolleys or streetcars are powered on many city streets.”

Read more: Truck Electrification System to be Tested at Ports of Los Angeles, Long Beach. Thanks to Paul Best.

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