Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 4   >   >>
Etmax
User Rank
Rookie
re: Wave good bye to airplane tickets
Etmax   7/13/2011 2:53:58 PM
NO RATINGS
US statistics say otherwise :-) around 80% of commuters drive alone. This no doubt varies a little from state to state and country to country, but this data was from Oregon. The stats for the holiday season will be different too of course, but that's a small percentage of annual travel miles.

Etmax
User Rank
Rookie
re: Wave good bye to airplane tickets
Etmax   7/13/2011 2:45:57 PM
NO RATINGS
And has a higher energy density

Etmax
User Rank
Rookie
re: Wave good bye to airplane tickets
Etmax   7/13/2011 2:44:44 PM
NO RATINGS
I would suggest you look at what the rest of the world pays for airfares, taxes while high in other countries are not 45%.

Etmax
User Rank
Rookie
re: Wave good bye to airplane tickets
Etmax   7/13/2011 2:43:26 PM
NO RATINGS
It's a matter of energy density really, and how efficiently hydrogen generation is compared to battery charging.

Code Monkey
User Rank
Rookie
re: Wave good bye to airplane tickets
Code Monkey   7/12/2011 10:55:39 PM
NO RATINGS
You forgot the lawyers. Tort law has all but killed any innovation in aircraft design. I expect to see help from extraterrestrials before I see useful legal reform.

Duane Benson
User Rank
Blogger
re: Wave good bye to airplane tickets
Duane Benson   7/12/2011 9:16:50 PM
NO RATINGS
To bring it back to electronics - we still have some improving to do. Tele-presence has come a long way, but it's still not as ready as it needs to be. My software engineers work at home two days a week. They still come in those other three days to see people in person and stay a part of the team. It's not terribly difficult these days to put together a video conference, but it's not terribly practical to try and do so with a bunch of different people. (on software here, still not quite on electronics). The solutions available are close but not quite ready. For most of my video conferences, I end up using the computer for imagery and a separate voice telephone line for the voice. I just haven't had good luck combining the two. The same goes for combining screen conferencing with live video. Likely those issues could be solved with increased bandwidth purchase and higher performance PCs. That still doesn't eliminate the need to pop over to someone else's cube. Bandwidth, higher performance PCs and improved software might solve that problem. Tele-presence robots might also solve that problem. I read a lot about this type of robot but haven't found a real-world (as in not a test or pilot program) example of their use. Does anyone reading here use a tele-presence robot in a real-world day to day situation?

danlutes
User Rank
Rookie
re: Wave good bye to airplane tickets
danlutes   7/12/2011 9:15:08 PM
NO RATINGS
Yes, you can run a jet engine on natural gas, BUT carrying large amounts of explosive gas on aircraft has been unfashionable ever since the Hindenburg. Jet fuel is less volatile and less explosive than gasoline and much less so than natural gas.

danlutes
User Rank
Rookie
re: Wave good bye to airplane tickets
danlutes   7/12/2011 9:01:21 PM
NO RATINGS
Hydrogen is not an energy source, it is an energy storage medium, similar to a battery. There are no "hydrogen mines". Concentrations of hydrogen are achieved by applying energy to water (H20) to separate the hydrogen. So the question is whether concentrating hydrogen is less expensive than charging a battery.

The MicroMan
User Rank
Rookie
re: Wave good bye to airplane tickets
The MicroMan   7/12/2011 7:23:01 PM
NO RATINGS
This whole thing sounds like an editorial run amuck - has nothing to do with electronics - maybe just a reporter stuck in an airport. In 1974 people were pushing their cars down the road because they were OUT OF GAS and in line to get some. Those were gas-guzzlers. Our cars (and planes) are far more efficient now. Watch an old movie of a 707 taking off and see the smoke draping behind, or drive behind a 1960's classic car and you'll appreciate today's advanced engines. The price of everything, except perhaps of transistors, is constantly going up. Maybe telephone calls are cheaper. My father bought a nice new 4 bdrm house for $14,000 in the 60's. If you want to save the atmosphere, fuel, congestion, vast sums of money, and your health, leave your BMW or Prius at home and ride a bicycle. My observation is that 80% of cars have only one person in them. And he's late. Welcome to America.

bempey
User Rank
Rookie
re: Wave good bye to airplane tickets
bempey   7/12/2011 7:09:54 PM
NO RATINGS
Jeremy pretty much covered everything I was going to say, but I'd just like to clarify that kerosene, home-heating oil, diesel, and jet-fuel are the same thing, just different qualities (and taxes). So bio-fuel is the obvious, easy solution, but availability and price are factors that will drive prices up higher (which will drive down demand). The jets will be competing for the same bio-fuel/dino-diesel mix as the serial diesel-electric hybrid cars of the future (the parallel gas-electric hybrids such as the Prius are a blip, as they are extremely expensive, both economically and environmentally). So, you can be assured that while new planes and fuel-sources keep us flying, the prices will go nowhere but UP in the future.

<<   <   Page 2 / 4   >   >>


Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

MSGEQ7-Based DIY Audio Spectrum Analyzer: Testing
Max Maxfield
13 comments
In my previous column on this topic, we discussed the step-by-step construction of the first pass at a MSGEQ7-based DIY audio spectrum analyzer for use in my BADASS Display project. Of ...

Karen Field

June 2014 Cartoon Caption Winner
Karen Field
13 comments
Congratulations to "Wnderer" for submitting the winning caption for our June cartoon, after much heated conversation by our judges, given the plethora of great entries.

Jeremy Cook

Inspection Rejection: Why More Is Less in a Vision System
Jeremy Cook
3 comments
Albert Einstein has been quoted as saying, "Everything should be as simple as possible, but not simpler." I would never claim to have his level of insight -- or such an awesome head of ...

Jeremy Cook

Machine Fixes That Made Me Go 'DUH!'
Jeremy Cook
21 comments
As you can see in my bio at the end of this article, I work as a manufacturing engineer. One of my favorite things that happens on a Friday late in the afternoon is to hear my phone ring ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)