jnw2

16 ms·

91.
by jnw2 16y ago
``Lead On!'', by Rear Admiral Dave Oliver, Jr, 1992, claims otherwise on pages 50-51: ``On the day of interest, while operating at a deep depth, the digital-readout depth gauge on this ship stuck at a few feet shallower than the desired dep
92.
by jnw2 16y ago
What's to prevent building a network with fiber to the home, with ethernet switches with 100 megabit ports for each home, and a 10 gigabit uplink on each switch going directly to a Netflix server? And is there any reason the per port cost
93.
by jnw2 16y ago
Ideally, the last mile fiber would be divorced from the IP connectivity to the rest of the world, so that a residence would pay the same money to use that last mile fiber whether they're running 1 megabit or 1 gigabit. If you then had real
94.
by jnw2 16y ago
I'd like to see the point & shoot camera companies start integrating complete Android phones into their point & shoot cameras.
95.
by jnw2 16y ago
I recommend submitting comments about this via the ``Contact us'' page on whitehouse.gov I also think we should be encouraging the White House to put Bruce Schneier in charge of the TSA.
96.
by jnw2 16y ago
Looks like http://ycombinator.com/people.html doesn't list Paul Buchheit yet.
97.
by jnw2 16y ago
I think the right strategy for charging a locomotive battery pack would be to install a short section of 25kV catenary at the station/layover facility at the end of the route. Amtrak has some HHP-8 locomotives which are 8000 horsepower, ab
98.
by jnw2 16y ago
Congress has 1) Only chosen to buy 20 Acela trainsets, with one first class, one cafe, and four business class cars each, and I believe four of those are always scheduled to be undergoing maintenance at any given time. 2) Told Amtrak to try
99.
by jnw2 16y ago
I see no reason you can't build tunnels 100-200 feet underneath people's homes to avoid kicking people out, but that has the problem that you need broad public support for spending that money. Then again, if we redirected 10% of our milita
100.
by jnw2 16y ago
I thought the train equipment was a little lighter than that, and automobiles normally weigh somewhat more than 2000 pounds. In any event, doesn't the train being heavier mean that it can carry a much bigger battery pack than the automobile
101.
by jnw2 16y ago
Most parts of the world have found that the current three hours from DC to NYC is already short enough to eliminate the flights except for people connecting to other flights. However, Amtrak doesn't have enough seats to absorb all the airl
102.
by jnw2 16y ago
http://en.wikipedia.org/wiki/Keystone_Corridor seems to think electrification to Harrisburg was completed in the 1930s. Amtrak has shown no evidence of planning to use batteries similar to what is in the Nissan Leaf or Tesla automobiles f
103.
by jnw2 16y ago
Having enough seeking bandwidth across 7200 RPM or 10K RPM or 15K RPM bottlenecks sometimes contributes to not being able to use 1 TB 7200 RPM disks in enterprise file servers with acceptable performance, but needing more expensive (per GB/
104.
by jnw2 16y ago
I'm not sure I agree with the objection to passwordless ssh keys. A system that uses passwordless ssh keys may be more secure than one using an unauthenticated protocol.
105.
by jnw2 16y ago
I suspect oil prices are going to collapse at some point in the next several years, once there are enough battery powered cars on the roads from Tesla and Nissan and others to reduce the demand for oil a bit. That may have some effect on t
106.
by jnw2 16y ago
An automated taxi service is certainly one of the things we ought to get out of this navigation technology (but you don't want to call it a taxi service, because you don't want to be subjected to the limits and fees placed on taxis by munic
107.
by jnw2 16y ago
I'm not aware of any of the battery powered cars that have been announced being set up for battery swap. Meanwhile, AFAIK everyone has agreed on a standard AC charging connector good for 120/240 V, with the connector itself being good up to
108.
by jnw2 16y ago
If we manage to get cheap solar and cheap batteries, the usage pattern is probably going to be more like: top off batteries at work during the day, drive home, partially drain car batteries out to grid while the sun doesn't shine overnight,
109.
by jnw2 16y ago
I'm not convinced you need battery swap stations for personal vehicles. The Nissan Leaf has a 500 VDC, 125A quick charge connector, which allows 80% charge of its ~23 kWH battery in a half hour. If you have a similar wattage charging optio
110.
by jnw2 16y ago
There may also be some pressure on the busier roads to force the use of the automated mode, once it can reliably space cars closer than can safely be done with manual driving, and once a large enough fraction of the cars on the road support
111.
by jnw2 16y ago
Once we have fully automated cars that obviously don't need the manual override features to be used, the spirit of the Americans with Disabilities Act says that it is unfair to deny those with disabilities that would prevent them from obtai