×

Announcing: Slashdot Deals - Explore geek apps, games, gadgets and more. (what is this?)

Thank you!

We are sorry to see you leave - Beta is different and we value the time you took to try it out. Before you decide to go, please take a look at some value-adds for Beta and learn more about it. Thank you for reading Slashdot, and for making the site better!

Comments

top

Ask Slashdot: Can a felon work in IT?

DamonHD There is hope (10 comments)

FWIW, and I'm in the EU, I took on a friend of a friend who'd received a very serious conviction, and after a spell with me in IT he is I think fully gainfully employed by a big-name company and all is well with the world.

I don't know if the EU/US differences are critical here, or other aspects of the case, but I'd say that there is hope.

The guy is very pleasant and hard-working and I'm glad that I had him work for me. I'm also pleased that I was able to help him overcome a hurdle to getting back to a 'normal' life.

Rgds

Damon

about two weeks ago
top

Two Google Engineers Say Renewables Can't Cure Climate Change

DamonHD Re:Well if two google engineers say so (652 comments)

WOOSH!

The capitalisation thing is a piss-take on the tabloid press, eg the Daily Mail and its ilk. In general The Register doesn't take itself very seriously.

No, I don't like the LH anti-CC articles very much, but he seems an OK guy except for that large blind spot!

Disclaimer: I occasionally write for ElReg and indeed hope to get a free lunch out of that writing in a couple of weeks!

Rgds

Damon

about three weeks ago
top

In a Self-Driving Future, We May Not Even Want To Own Cars

DamonHD Re:My motorcycle... (454 comments)

And what strain of paranoia makes you think that any of us in this thread want to "silence" you; that is wild talk.

We appear to be having an on-line civil discussion with no gun literally or metaphorically held to your head.

Currently I think that the clear majority of road users and funders don't want motocyclists (or others) with a rather strong sense of self-entitlement going at *unsafe* speeds around us, whatever those speeds are and whether or not they are related to the legal speeds. However, I haven't seen many public roads on which 154mph would be safe other than empty motorways in good visibility.

Rgds

Damon

about three weeks ago
top

In a Self-Driving Future, We May Not Even Want To Own Cars

DamonHD Re:My motorcycle... (454 comments)

So go and get the rules changed, but the original question appeared to be in the present tense, and I answered it as such.

Actually, I think that speed limits are bad laws* but I'd still want people dinged for dangerous driving in that shared space whatever vehicle and speed is involved.

Rgds

Damon

*I take the lead from my uncle who was a very senior and placid and respected barrister who as far as I know had never knowingly broken a speed limit, and had immense respect for (most of the rest of) the law of course.

about three weeks ago
top

In a Self-Driving Future, We May Not Even Want To Own Cars

DamonHD Re:My motorcycle... (454 comments)

Because you want to use a socially-provided asset, ie the road network, so please respect your co-users and co-funders of it.

What you do on your own land may be a different matter, but is not part of this discussion.

Rgds

Damon

about three weeks ago
top

In a Self-Driving Future, We May Not Even Want To Own Cars

DamonHD Re:Flawed, 'cos... (454 comments)

Don't buy in to 'peak' anything if you can avoid it; nicer for you and nicer for (and cheaper for) infrastructure.

I pick my work hours (when I have a day job) so that I avoid peaks since I loathe them even more than getting up early which I then do instead.

And now I'm full time on my start-up I need not generally join the peaks either (nor travel nearly so much nor so regularly).

I disagree similarly with the rest of your assertions as being necessary at all. You assume them to be so, but they are clearly not so for everyone, and probably not so even for you. And we do NOT have to solve the problem for everyone with a single solution anyway.

Rgds

Damon

about three weeks ago
top

In a Self-Driving Future, We May Not Even Want To Own Cars

DamonHD Re:In a Self-Driving Future--- (454 comments)

Yes, same here. If I actually need a car journey I rent. There's even a Zipcar bay very close to me though I've not had reason to use it yet. I save myself the expense and trouble of owning, insuring and maintaining a car. I also have a much cheaper house from not having to pay for parking space nor even being right next to a road; I may have saved as much as £100k on my house purchase in fact, which on top of not paying for a car all that time seems like a huge bargain.

Rgds

Damon

about three weeks ago
top

Denmark Faces a Tricky Transition To 100 Percent Renewable Energy

DamonHD Re:Real-time market approach (488 comments)

People already DO react to time of use pricing and it is in use in many places round the world at retail level and most places at commercial and industrial level.

One thing to note at the retail level is that typically not even the majority of the retail cost of a unit of electricity is the energy itself; infrastructure costs and so on are folded in too, so the price swings are a lot less dramatic than at the wholesale (or balancing) level which can range from 3:1 to 10:1 in the GB market for example.

The GB's best-known ToU retail tariff (sadly we don't have a national real-time one) is Economy 7, designed originally to soak up power at night from nukes that couldn't be turned down. (It's not only renewables that have stubborn timing problems.) I think the unit price ratio is about 3:1 between day and night. One third of domestic electricity use is on that or closely related tariffs, or 10% of all GB electricity consumption roughly. (The definitive source of this data is DUKES https://www.gov.uk/government/... .)

Rgds

Damon

about a month ago
top

Denmark Faces a Tricky Transition To 100 Percent Renewable Energy

DamonHD Re:Home storage (488 comments)

Average UK household use when I last looked ~3,300kWh/y.

Ours, ignoring PV, 1,500kWh/y (family of 4, end of terrace house).

I see a (cheap) solution...

However, we do generate a mean of ~10kWh/d from our PV also, down to ~1kWh/d in the depths of winter. A 4kWh battery would mean that we would not have to import from the electricity grid at all for 9 months of the year, only export. A complete inverter+battery system to cover us would currently cost about GBP8k. If we switched from natural gas heating to heat-pump (doubling our annual electricity demand, primarily in winter) that would still be about 6 months. We'd need a bigger inverter though.

Rgds

Damon

about a month ago
top

Eben Upton Explains the Raspberry Pi Model A+'s Redesign

DamonHD Re:Nice and all (107 comments)

I have my RPi B+ running all my Internet facing services and running off-grid in gloomy London at under 2W, nearer 1.5W when I can fix some transient issues.

http://www.earth.org.uk/off-gr...

And if I need something lower power I have Arduino-like boards that I run on microwatts, eg for battery-powered remote sensing.

http://www.earth.org.uk/out/ho...

I see all the complaining about memory and speed but as someone who grew up with a Z80- and 6502- based set of home computers, then used Sun Workstations with a few MB of RAM and tens of MHz clock, the Arduino/ATMega328P matches the Z80/6502s in performance at a millionth the power and has non-volatile storage built in, and the RPis are and order or two of magnitude better than the workstations and a couple of orders of magnitude cheaper.

I can fit almost all that I need to run with careful use of resources into the RPi/Arduino world and still have lots of elbowroom left over.

Yes, I've worked on big systems for (eg) big banks, but most of us really need GHz and GB on every machine? Some yes (like my MacBook), but most no.

Rgds

Damon

about a month ago
top

Ask Slashdot: How Useful Are DMARC and DKIM?

DamonHD Re:DMARC and Google: multiple foobars (139 comments)

That would be a very good step and eliminate most of the issue with Google, I agree.

However, G also insists on, for example, sending out G Calendar notifications forged with my sign-in email, which is SPF/DMARC protected, and which other systems (and gmail) thus entirely correctly often reject.

But I can't get anyone at G to even acknowledge the issue. (Would be nice if a Googler was reading this and would pass it on.)

And, BTW, G also seems to ignore email other than from the a/c's login address, eg for AdSense/AdWords, which is a Catch-22, and one small reason why I am using them far less.

Rgds

Damon

about a month and a half ago
top

Ask Slashdot: How Useful Are DMARC and DKIM?

DamonHD DMARC and Google: multiple foobars (139 comments)

DMARC would work a lot better if Google for one didn't wrongly try to internally forward as-is *and then bounce* email from DMARC-controlled domains, thus making it impossible for example to get through for many support queries, and causing spurious problems with (say) Google Calendar when the account ID is in a DMARC-controlled domain.

Left hand vs right hand Google? You guys are meant to be smart!

That and randomly chucking email from DMARC-controlled domains in SPAM folders...

Rgds

Damon

about a month and a half ago
top

UN Climate Change Panel: It's Happening, and It's Almost Entirely Man's Fault

DamonHD Re:Let's talk about the Sun... And Mars too (695 comments)

Why, in a supposedly scientific study of warning is the source of warming (ie: the Sun) ignored and/or considered a constant in every study?

It isn't.

Rgds

Damon

about a month and a half ago
top

Statisticians Study Who Was Helped Most By Obamacare

DamonHD Re:Redistribution (739 comments)

The need to worry about *not having proper health cover* as tangled up in any way with changing job would be restrictive.

I have no such issue at all, ie I can change jobs or have no job or do my start-up and it makes no difference to how I access medicine.

Rgds

Damon

about a month and a half ago
top

Statisticians Study Who Was Helped Most By Obamacare

DamonHD Re:Redistribution (739 comments)

Hmm, I hear what you say, but it wasn't generally stand-alone IT that would be much use outside finance, and I was the CTO of the virtual credit card start-up.

But I assure you that there is no gold-filled vault, no not even slightly full of warm lovely glowing metal; nothing to see here, move along.

Rgds

Damon

about a month and a half ago
top

Statisticians Study Who Was Helped Most By Obamacare

DamonHD Re:Redistribution (739 comments)

It's called "contracting" or "consulting"; I have spent the best part of 20 years working in IT in the City of London, none of it permanent.

I have also founded a retail finance start-up. I'm not sure if start-ups count as freelancing; there's matching insecurity and worry and no steady income!

Rgds

Damon

about a month and a half ago
top

Statisticians Study Who Was Helped Most By Obamacare

DamonHD Re:You shouldn't need insurance for most things (739 comments)

For most things maybe you just shouldn't be paying, at all denying treatment to those who happen not to have spare cash, eg students and young adults in general getting going in their jobs. I couldn't have paid anything much as a teenager for my epilepsy diagnosis and treatment; should I have just rotted before I even got to uni? I had left home, BTW.

(In the UK I do pay for a few things at point of use under the NHS, but often even then fairly small fixed/tiered charges.)

Rgds

Damon

about a month and a half ago
top

Statisticians Study Who Was Helped Most By Obamacare

DamonHD Re:Redistribution (739 comments)

Bingo! I would not have been able to do multiple start-ups and freelance in banking and writing if tied to a job by health insurance given that I have had imperfect health.

Score one for the UK NHS, even though also imperfect, for giving me mobility.

Rgds

Damon

about a month and a half ago

Submissions

top

RIM co-CEO stomps off in huff

DamonHD DamonHD writes  |  more than 3 years ago

DamonHD writes "The BBC asks in an interview if "security" issues for example in the Middle East and India have now been resolved and Mike Lazaridis throws a hissy fit. It seems to me the question is fair, however uncomfortable."
Link to Original Source
top

Reducing UK housing CO2 emissions by 80% by 2050

DamonHD DamonHD writes  |  about 7 years ago

DamonHD writes "The Low-carbon Strategy from the Environmental Change Institute http://www.eci.ox.ac.uk/ at Oxford University identifies the policies needed to deliver an 80% cut in carbon emissions from UK homes by 2050. These cuts are achievable but will require a quantum leap in commitment from Government and a radical new approach.

The policies have been designed not only to dramatically reduce carbon emissions, but also to be delivered equitably. The poorest households will be prioritised for assistance and fuel poverty will be wiped out. The scientific consensus is that for the UK to play its part in helping the world avoid a rise of more than 2C, we must reduce our carbon emissions by 80 per cent by 2050. The household sector represents 27% of our total emissions and achieving deep cuts here is an imperative.

The low-carbon revolution starts at home.



Their previous work at http://www.40percent.org.uk/ from two years ago is also very interesting and thorough.

I'm amazed to find that with some simple measures at my home/office my family seems to have hit something like the 2014 targets already..."

Link to Original Source
top

Dead Milk Tanker for Zero-Carbon London Home

DamonHD DamonHD writes  |  more than 7 years ago

DamonHD writes "Is it possible for a small urban (London, UK) home to be powered entirely by locally-collected Renewable Energy, both for electricity and for heating?

An important issue is that there is only ~20% of the solar energy per day in winter compared to summer, so one way to make the whole project more likely to work is to store energy from the summertime to the winter.

This article looks at storing enough heat energy out of the ~26GJ used by one house per year for water and space heating to last the winter, 'charged' by solar thermal panels year-round.

And yes somewhere between 1 and 3 dead water-filled milk tankers buried in the the ground could hold the required energy!"

Link to Original Source
top

UK store chain giving away 1m CFLs on Saturday

DamonHD DamonHD writes  |  more than 7 years ago

DamonHD writes "Timed for when the clocks go back, Sainsbury's said it wanted to encourage people to save electricity during the dark months ahead.

To claim their bulb, customers will have to take an energy-saving pledge that urges people to recycle bags and switch to showers from baths.

Sainsbury's typically sells an average of one million green lightbulbs a year."

Link to Original Source
top

DamonHD DamonHD writes  |  more than 7 years ago

DamonHD writes "Is hungover New-Year-Europe having an Internet outage to go along with the mandatory seasonal glitches in the banking networks ("I was standing in the pub and suddenly all my cards stopped working")?"

Journals

DamonHD has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?