A Conversation for Ask h2g2

What news story has caught your attention today.

Post 16821

Bald Bloke

Rising in the best sellers list...

http://www.theguardian.com/books/2015/mar/04/communist-manifesto-tops-bestsellers-penguin-little-black-classics


What news story has caught your attention today.

Post 16822

hammondorgan

You know that jawbone that they found, million and a half years old I think, the earliest human jawbone? Well it looks exactly like my denture, mind you that's getting on a bit come to think about it.


What news story has caught your attention today.

Post 16823

Baron Grim

This should come as no surprise to anyone. The Daily Mail online is NOT a news source.

http://tktk.gawker.com/my-year-ripping-off-the-web-with-the-daily-mail-online-1689453286

A reporter tells about the Mail's policy of plagiary and knowingly false reportage.


When I see a link to a DailyMail.com article, I don't necessarily dismiss the story, but I do not click the link.


What news story has caught your attention today.

Post 16824

Bald Bloke

Intriguing speculation piece.

http://www.wired.com/2015/03/another-reason-toyota-make-hydrogen-fuel-cell-car/


What news story has caught your attention today.

Post 16825

ITIWBS

Elsewhere in the world:

http://www.csmonitor.com/Technology/Energy/2009/0212/iceland-strides-toward-a-hydrogen-economy

http://en.m.wikipedia.org/wiki/Hydrogen_station


What news story has caught your attention today.

Post 16826

Pastey

The problem with the current hydrogen stations is that they're not practical. The hydrogen still has to be produced and transported, and it isn't exactly the easiest, or safest of gasses to do so in large quantities.

However...

Quite a few years ago now I was having a conversation with a bio-chemist working for a large pharmaceutical company, and over a few beers explained an idea I had (after a few beers) after reading about algae. Some algae, when growing, produce hydrogen. It needs a small electrical kick-start, but then the algae grows happily and gives off quantities of hydrogen and dead algae as by-products. These algae farms could fit inside a grain silo, or even under-ground in old petrol tanks, and be self-sufficient after not that long a period of time. Using solar panels to provide the electrical kick-start, and burning the dead algae for small turbines and heat. The harvested hydrogen could then be used to power vehicles.

In short, current petrol stations could be converted into algae/hydrogen farms, without the need for transportation or a new dispense infrastructure.

I thought it was one of those "I write sci-fi and have had too many beers" ideas, but not only did this biochemist confirm that it's possible, but also that the company he was working for was working on something very, very similar itself.


What news story has caught your attention today.

Post 16827

ITIWBS

The Icelandic and Japanese automated hydrogen fuel stations solve the distribution problem by means of electrolyzing the water by means usually of a photoelectric system at the station itself, from a conventional water feed.

I'm personally more interested in hydrogen fueled IC engines, since one can theoretically get more power and greater cruising ranges than with petrochemicals or alcohol and better thermodynamic efficiency than with fuel cells by means of using the IC system to genetate mechanical energy directly, rather than first burning the hydtogen to produce electricity, then converting the electrical energy to mechanical energy, accepting the thermodynamic losses that come inevitably with the conversion process.

An important argument for hydrogen fuel, especially with official fleets, is that this improves readiness and resiliency of the total system against fuel shortage emergencies.


What news story has caught your attention today.

Post 16828

Pastey

I do believe that if we're going to keep personal vehicles in the long term, they have to get away from petrol/diesel to something like hydrogen.
I don't believe that rechargeable electric cars are the way forward, we're still burning fossil fuels to produce the electricity for them.


What news story has caught your attention today.

Post 16829

Maria


Electricity can be obtained from other sources: eolic, solar...


What news story has caught your attention today.

Post 16830

Bald Bloke

From when ape-descended life forms were so amazingly primitive that they still thought digital watches are a pretty neat idea.
http://www.wired.com/2015/03/tech-time-warp-week-1972-digital-watch-cost-car/


What news story has caught your attention today.

Post 16831

Khal Drogo's ponytail

<>

Frankenstein algae?

Remember reading about a guy up in the Highlands who used a wind turbine to crack hydrogen from water which he then used to run his car. All seemed quite feasible and practical to me.


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