Inzkeeper (767071) writes "I remember years ago when I first ready about fuel cells as a possible alternative energy source. This sounded great: using hydrogen to generate electricity without combustion. The exhaust is pure water. I was excited...until I started reading about the drawbacks. Hydrogen is not easy to produce, store, distribute, etc. The cathode is made from platinum making it expensive.
Years after losing interest, I decided to check on recent developments in the field. I discovered that research into the use of fuel cells is alive and well. This may very well become the disruptive technology that we hope it could be. Here are some of the many recent innovations out there:
April 9 2013: Burn scrap paper and aluminum, add cheap catalyst and water: "cheap" hydrogen on demand
Nov 25, 2013: CellEra creates a catalyst free of rare earth metals.
April 29, 2014: Lawrence Berkeley and Argonne National Labs create a process that uses 85% less platinum and has more the 30 times the catalytic activity.
June 24, 2014: UK's Science and Technology Facilities Council experiments with ammonia as a source fuel. It is relatively easy to store, "cheap" to make, and can be stored at low preassure.
July 2014: GE has developed a process that uses stainless steel as a catalyst instead of platinum. The fuel is natural gas instead of pure hydrogen. The exhaust, a mixture of hydrogen and carbon, is then put through a combustion engine for further efficiency.
August 4, 2014: Anglo American Platinum is funding a study into the use of liquid organic hydrogen carrier (LOHC) technology as a means of storing hydrogen.
August 22, 2014: Stanford has developed an process for producing hydrogen from water using inexpensive materials and relatively little energy." top
Inzkeeper (767071) writes "Groupon CEO Andrew Mason made public an email he sent to Groupon employees. He takes responsibility for the company's downturn, expresses his appreciation for his staff, and wishes them well. "For those who are concerned about me, please don't be — I love Groupon, and I'm terribly proud of what we've created. I'm OK with having failed at this part of the journey. If Groupon was Battletoads, it would be like I made it all the way to the Terra Tubes without dying on my first ever play through."" Link to Original Source
Even after 10 years of being on Slashdot, I am left to wonder what the point of a Slashdot journal is. Who would ever look here and why? Perhaps if this was the graveyard of rejected submissions but otherwise...? Hmmm....