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mike47

Re:Ask HN: Best Practises / advice for Home Ethernet Cabling on Thursday February 18, 2021 @04:40AM (#26177843)
One idea might be to speak to a home security/burglar alarm company. I've had alarms retro-fitted to a couple of houses in the UK and both times the installers were very creative in routing the cables almost invisibly. (There were inevitably one or two stretches that could not be hidden).

If you have to run cables over the surface of the walls, can you box them in and redecorate the boxwork? Can you run the horizontal cables through coving around the edges of the ceilings?

Re:An 89-year-old Reinventing the Train in His Backyard on Sunday June 18, 2017 @05:25PM (#14583036)
The changes in fuel economy mentioned in that article don't seem that big. On the other hand, if an electric car only needed batteries for a range of say 50km, that would be a large saving in cost and weight. The batteries are only needed for local journeys, and the thrust carriage mechanism provides almost all of the energy for long journeys.

It would probably require electrically driven thrust carriages rather than pneumatic - you would need one for every car using the system. Trucks might need 2 or 3 or more to provide enough thrust. If a magnetic coupling really works, it would be possible to attach and detach from the thrust carriage at motorway intersections without slowing down any more than cars do at the moment.

Re:An 89-year-old Reinventing the Train in His Backyard on Sunday June 18, 2017 @07:26AM (#14580181)
The idea of a magnetic coupling between the engine and the passenger compartment is very interesting. This could be adapted to use with self-driving automobiles on highways. They could run on their own electric power train for local journeys, then pick up a "thrust carriage" when joining a highway. This pulls them along until their exit, when they decouple and return to using their battery and on-board motors. The on-board motors could also take over for short sections for example between different thrust carriage runs.

Perhaps the thrust carriage control systems could be made smart so they automatically maintain safe spacing between vehicles and adapt their speed to the volume of traffic. They'd communicate with the vehicle to tell them when the coupling was about to end so that the vehicle can engage its own drive train to take over smoothly. Or the vehicle's self-driving systems tell the thrust carriage how fast to go depending on the traffic conditions.

This could massively extend the range of electric cars. Burying the pipes in the road network would obviously be very expensive, but the size mentioned in the article (12 inch diameter) is not prohibitive.

Ask HN: Recommendations for educational video games

I find video games very dull - whether it is a shoot-em-up or car racing or whatever. I consider them a waste of time.Are there any really good educational games? I'm aware of plenty of "brain training" games that are supposed to improve general problem solving skills, but I'm looking for something more targeted. I've a PhD in particle physics and I write code for a living (C++ and Python...

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Re:Ask HN: What made you decide to marry your spouse? on Tuesday May 16, 2017 @03:55PM (#14352729)
She did!
Re:Ask HN: Let's list hair on fire problems on Friday March 21, 2014 @05:52AM (#7441413)
Don't knock it 'til you've tried it ;-)
Re:Ask HN: time for an extra-secure browser? on Friday February 03, 2012 @10:08AM (#3547320)
Do you mean that many (most?) online banking sites use JS? Based on my bank's online system, I don't think there is anything that could not be done without scripts. And my suggestion (perhaps not well expressed) is that someone (e.g. the banks themselves) develop a cut-down extra secure browser for use exclusively with online banking websites. I am assuming that the majority of online banking is done from customers' own home computer or tablet; obviously this idea won't help people logging on via a shared public PC.

Ask HN: time for an extra-secure browser?

A report on the BBC website about a new attack on internet banking (http://www.bbc.co.uk/news/technology-16812064) made me wonder if it is time for an enhanced security browser that could be used just for online banking? So for example, it would not run any Javascript, have a very strict same-origin policy, and could perhaps include some kind of built-in anti-virus. Any thoughts?

( Read More... | 2 comments | on HN )
I found the advice from Leo Babauta of zenhabits.net helped me quite a lot - particularly his book "The Power of Less". Basically, he advocates reducing other commitments and focussing all of your energy on a small number of projects (e.g. 3) and only starting something new when they are ALL finished. Easier said that done, of course, but I do finish things more frequently now...

Ask HN: Umbrella company for UK contractors

I'm looking to move back into contracting after a career break. Last time I did this I ran my own limited company, but this was a lot of hassle. Can anyone recommend a good (UK) umbrella company? Or should I set up my own company again?

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