FESTO, November, 12


  1. The Future Transportation Technologies


  1. Rosetta/BBC


3. Rosetta spacecraft mission



FESTO, September 10

1. A brave lecturer. Explaining how the potential energy of gravitation transforms into kinetic energy, the professor takes some risk facing 15 kg wrecking ball

2. The water crisis: catch at the Lifesraw!

More on the Lifestraw

3. A human-powered helicopter



June 24, Carbon offset

carb offsetI’ve been looking for examples of inversion in speech and thats what I»ve dug out: a popular lecture on carbon footprint and carbon offset


…and a critical one on the same: carbon offsetting as another bubble



Emissions trading or cap and trade is a market-based approach used to control pollution by providingeconomic incentives for achieving reductions in the emissions of pollutants.[1]

A central authority (usually a governmental body) sets a limit or cap on the amount of a pollutant that may be emitted. The limit or cap is allocated or sold to firms in the form of emissions permits which represent the right to emit or discharge a specific volume of the specified pollutant. Firms are required to hold a number of permits (or allowances or carbon credits) equivalent to their emissions. The total number of permits cannot exceed the cap, limiting total emissions to that level. Firms that need to increase their volume of emissions must buy permits from those who require fewer permits.[1]

The transfer of permits is referred to as a trade. In effect, the buyer is paying a charge for polluting, while the seller is being rewarded for having reduced emissions. Thus, in theory, those who can reduce emissions most cheaply will do so, achieving the pollution reduction at the lowest cost to society.[2]

There are active trading programs in several air pollutants. For greenhouse gases the largest is the European Union Emission Trading Scheme, whose purpose is to avoid dangerous climate change.[3] In the United States there is a national market to reduce acid rain and several regional markets in nitrogen oxides.[4] Markets for other pollutants tend to be smaller and more localized.

Elena M. March 10, 2014


coral11. The parts of the soul. Part 2.


2. The harmony of the soul.


3. A secret life of a coral reef. BBS, time-lapse video


Ivan Z. October 4, 2013

  1. We’ll revise some expressions from Episode 5
  2. We’ll start episode 6.


3. American fast speech: Robots for Pentagon


4. A crazy one-wheel bike