* Posts by annodomini2

1181 publicly visible posts • joined 24 May 2010

Boffins use DVD burner to scale graphene supercapacitors

annodomini2

Re: A very neat hack.

"I'm wondering if the disk spins while it's being written?"

Yes it does

http://en.wikipedia.org/wiki/LightScribe

Doped nanotubes boost lithium battery power three-fold

annodomini2
Devil

Re: My Samsung Galaxy SIII needs a good battery

And if they fix the battery contacts! ;)

Curiosity photographs mysterious metal object on Martian rock

annodomini2

Looks to me like a heavy duty tent peg.

annodomini2

Re: Why call it Curiosity....

It's about $200,000/kg to mars.

What a Liberty: Virgin Media in buyout talks with telecoms giant

annodomini2

Re: well we can hope

I just badger them until they put me through to the UK call centre, the standard offshore unit is completely useless, the UK one couldn't be more helpful.

Ten 3D printers for this year's modellers

annodomini2
Thumb Down

@Ogi

That's the principle, the reality is far different!

Unfortunately to get these things working correctly takes hours and hours of fiddling with the machine, then hours and hours of fiddling with the models to get what you want.

Yes that plastic clip for a 40-50yo car costs £20, but if you include your time, usually it's cheaper to just buy the clip and enjoy the car.

annodomini2

@Ledswinger

An artist has already built a Solar powered unit to work with sand.

http://boingboing.net/2011/06/25/solar-powered-3d-san.html

ESA proposes 3D printing on the moon

annodomini2

Re: Moon power

You only get light 14-15 days out of the month, albiet for the full period.

But night is also 14-15 days, so you'll have 2 weeks of no operation.

annodomini2

Re: more techo-wanking

Another name for 3D Printing is additive manufacturing, so a robot spraying shotcrete only for tunnel linings is not a 3D Printer, but if it can do other things, such as surface structures then it is.

annodomini2

Re: more techo-wanking

Yes a membrane would help with sealing, but the structure still needs to be safe and the interior needs to be usable.

It's no good if you're tripping over ridges and out crops all the time.

annodomini2
Thumb Down

Re: Moon power

The amount of energy required is dependent on how fast you want the machine to run, being a robot time is less of a consideration.

RepRap's typically run on about 100-150w (without heated bed), which is quite feasible with solar or an RTG.

Now obviously we have no figures for the current machine design, so a requirements analysis cannot be attempted without these numbers.

Space systems can be optimised to run more efficiently, due to the general funding advantage, this will help with feasibility.

The main issue won't be power, it will be all the other complex systems that will need to be built on Earth and shipped to the Moon that will drastically increase the cost and resultant viability of the operation.

annodomini2
FAIL

Re: more techo-wanking

The rock on the moon is porous, just like most rock here on Earth!

Yes if you cut tunnels into the surface of the moon this is beneficial as your habitat can have a greater mass helping to provide greater protection.

The weakness is that you need material (just as tunnelling here on Earth) to reinforce the structure and critically on the Moon, make it air tight.

The reason from ESA's perspective that this is beneficial, is that they (in theory) can regulate the material added and prevent weaknesses in the structure that may potentially expose the inhabitants to the Moon's virtually non-existent atmosphere.

I think a more logical solution is to take the proposed technology to one of the many discovered lava tubes (probably extinct ;) ) and reinforce the internal structure there.

You'd have the benefits of a tunnel, without needing a TBM and a low cost (relatively) solution.

annodomini2
Boffin

Re: robots

The Moon is only 1.282 light seconds away, they can and have been controlled from Earth.

Nasa has those 2 robots on the ISS (internal and external), under test, for helping with repairs.

Google's Glasses: The tech with specs appeal?

annodomini2
Devil

Key question you haven't answered

Yes you don't wear a watch, but do you wear sunglasses?

I think this is where the distinction will be made, as long as they don't feel like you have a bowling ball strapped to your head, or give you significant eye strain as a result, I think this will be an interesting concept.

The glasses situation is a good point, will people requiring vision correction be required to wear contact lenses to use this?

The key to it's success as with most products will depend on it's benefit to cost ratio. If they try and pull the marketing must have and charge 3x price of a top end smartphone, I think it'll go the way of the early touchscreen devices, nice idea, but too expensive. Comparable to a top end SP or less (please, please, please! ;) ) and you may stand a chance of hitting the ground running.

Car dashboards get Nokia HERE without a phone in sight

annodomini2
Gimp

They using a '65 Stingray for the ad's?

Official: Fandroids are smarter/tighter* than iPhone fanbois

annodomini2

Re: But the numbers also reflect the demographic which owns an iPhone

Stealing that! :)

'Gaia' Lovelock: Wind turbines 'may become like Easter Island statues'

annodomini2
Coat

Re: Spin This

And if they continue with Tokamak, it will be the size of the Moon and use, 3 * 10^9 kg of Deuterium and Tritium a year, require 300 3GW Fission plants to make the Tritium to run it.

Increase global warming due to thermal inefficiencies.

All to power New York.

annodomini2
Mushroom

Re: If your name's not down, you're not coming in... [sorry, but the mistakes were driving me nuts]

This is why I like the concept of buried self contained nuclear generation systems, I believe most concepts are breeder based.

You build a 20-500MW reactor, bury it deep underground (ooh what about all those disused coal mines ;) ) and feed cables to the grid.

When it needs decommissioning, you turn it off, done. No clean up, no overheads. At least that is the theory.

If there is a problem, it's well away from people and while there is obviously a financial loss, it will be nothing like the clean up costs being experienced at say Fukushima or Chernobyl.

LOHAN teases with quick flash of spaceplane

annodomini2
Boffin

Stabilisation

Will there be sufficient air pressure at the launch altitude to allow the winged surfaces to stabilise the direction of the craft?

Asteroid-mining 'FireFlys' will be ready for action by 2015, vows space firm

annodomini2
Boffin

Cheap fuel on orbit

May be the key to kick starting the commercialisation of space.

There are lots of old satellites in parking orbits, now they may not be able to refuel them as:

A: They weren't designed for it.

B: Their systems are probably dead.

However they do possess a lot of processed materials that have the potential to be recycled, this is currently not cost effective due to launch costs, I.e. it's cheaper to put a new unit it up, than trying to recover old units.

But... If fuel was available relatively cheaply for recovery machines to move them to a location (on orbit) where the materials could be reused the capability to create on orbit systems may start to appear.

Given current launch costs this could potentially be quite lucrative.

I realise this is very idealistic, but at the same time if there is no dreaming then we will never get there.

The main issue I forsee is that existing satellites use hydrazine for thruster fuel, making hydrazine on orbit may be a challenge and that units intended for refuelling may need technology updates beyond the refuelling mechanisms.

Nokia lets Lumia 820 owners 3D print their own case

annodomini2
Mushroom

Interesting Pre-cept

Sounds like Nokia are trying to play the long game.

Android got into the market by appealing nerd/geek/[insert other stereotype] segment of the market. Some of this segment will be software engineers, which gets them interested in the App side.

So they sneakily had a dev base, before the system went mainstream, this is where WinPho 7/8 falls down. Windows Phone has been in the market for ages, and it's predecessors were absolute garbage. 7 and 8 are an improvement, but they missed the boat.

The only thing that may save them is that Apple appears to have lost it's direction.

The fundamental weakness in this concept is that the steam has run out on the 3D printing fad, simply because the stuff you get out of the affordable home machines is so crap and the amount of effort required to get these machines working correctly, far outweighs the benefits.

There will be resurgence when the off the shelf tech gets to an affordable price point, but to me this is a cliche headline marketing bumpf. Rather than a solution to a non-existent problem.

Japanese boffins tout infrared specs to thwart facial recognition

annodomini2
Terminator

The weakness in this...

Given the 1984 states that many Governments security services would like, there would probably some form of regulation making this illegal.

Yes, this tech may prevent your face being recognised, but given it uses visible light. It is also obvious.

So as you are trying to fool the sensors, the sensors can detect that you are trying to fool them, making you a target.

T-800 heading straight for you!

Martian 'lake' said to hint at 'deep biosphere'

annodomini2
WTF?

Re: Why should there be life on Mars?

1. You're making an assumption and on the basis of that assumption 'let's not bother!'

2. Life is extremely resilient, just because you couldn't be arsed and would give up and die! Doesn't mean the extremophiles wouldn't.

3. There are bacteria living in the ice in Antarctica, these are just one form of many extremophiles.

4. If life got started on Mars and the conditions at some of the time allow that life continue to exist, then there may be life there, unless we go a look we will never find out.

This is critical to understanding one of the fundamental questions, are we alone?

Life (in some form) on Mars indicates a wider spread of life throughout the Universe as it's not unique to the chemistry and conditions here on Earth.

We trust computers to fly jets... why not trust them with our petabytes?

annodomini2
Megaphone

"We trust computers to fly jets... why not trust them with our petabytes?"

Cost and safety/mission criticality.

90% of the code used in aircraft is there to detect when something goes wrong, this code is also implemented in different ways across different platforms with the results analysed and double checked.

There are very strict standards that must be adhered to for the code to be even allowed to go anywhere near a plane and then it needs to be further tested before it is allowed to fly.

As stated above, this is not infallible and still subject to human error.

The cost and time to implement these systems is astronomical compared to a PC operating system based application.

Is it possible to do it? Yes. Will a business do it, probably not, simply as the cost and timescales would put them so behind the market that the business would be bankrupt before they sold license 1.

WTF is... Weightless?

annodomini2
Terminator

[See image]

VIA bakes a fruitier Rock cake to rival the Brit Raspberry Pi

annodomini2
Thumb Down

Re: Where's the market?

The Broadcom BCM2835 used in the Pi is a SoC, but designed for use in set-top boxes, not phones.

annodomini2
Joke

Re: The CPU is mounted diagonally?

Most VIA's are hollow, depends on your definition of a wormhole I guess? ;)

ESA, NASA agree on Orion module supply

annodomini2

Re: Tell me something

Yes the engine was under development, but the original S5 design called for 2 large SRB's and an even bigger engine called the M-1.

The F-1 was developed for heavy lift capability by the US Airforce, but abandoned when they decided they didn't need it and resurrected at some point in the process for the S5.

The F-1 wasn't developed with the moon mission in mind.

annodomini2
Thumb Down

Re: Tell me something

The design of the S5 was established in 1962, not before the Kennedy announcement (25th May 1961 BTW) and not greater than 8 years.

There is a difference between a rocket engine and a rocket.

annodomini2

Re: "presuming the project isn’t budget-cut to death"

http://www.spacesafetymagazine.com/2012/11/26/orion-capsule-cracks-pressure-test/

annodomini2
Childcatcher

Re: Tell me something

Not just money...

Political and Commercial will.

There are currently no major Political gains from going to the moon other than maybe a few votes at an election.

There is currently no commercial benefit to being on the moon, yes there are many resources, but with no infrastructure, businesses see a huge expenditure for minimal gain and in the current climate of I want my 10%+ return in 6m, long term, risky adventures are not in their interest.

Won't someone think of the kids, because some of the nut jobs think that spending NASA's budget on feeding starving kids in various parts of the world is a better use of the cash, but I can personally think of a certain US government budget that wouldn't miss the money!

Here we go again: New NHS patient database plan sets off alarm bells

annodomini2
Holmes

Re: Beta test

Simpler than that, all politicians families, financial backers, lobbyists, current mates, school mates and the entirety of Whitehall and their families.

Trust me, if they get it wrong, then they'll get it directly in the ear, which will result in them having a genuine, greater than 10 second attention span on the subject.

annodomini2
Devil

Yes but how is the government supposed to sell your medical information to private health insurance companies if it's behind protected firewalls and the data protection act?! ;)

annodomini2

Oh I don't know...

' you can't charge 12 billion quid for setting a standard'

Google, Apple, [insert other patent litigation headline company] keep trying with their 'FRAND' patents.

Viruses infect vital control systems at TWO US power stations

annodomini2
Stop

Critical point

The malware in question is 'unspecified' no where in the article does this state that this was a targeted attack.

Or that the malware was designed to disrupt the operation of these systems.

The fact they got infected is obviously a major security fail, but no where is it stated that the reason the machines were infected was deliberate.

Review: Google Nexus 4

annodomini2

Re: Missed chance

The LTE Chipset on the Nexus 4 isn't compatible with UK networks.

annodomini2

HTC One S

These can now be had for £250 sim free.

Albeit not the 4.7" powerhouse of the Nexus 4, in general use most people won't notice the difference.

They are also 16GB and have the 4.1.1 JB update, not the 4.2.

Some like HTC Sense, some don't, I personally prefer HTC's keyboard over the stock Android.

NASA aims Curiosity's percussive drill at pink, veiny target

annodomini2
FAIL

Re: Sorry guys. And I know it's really quite clever, but...

Your £8 drill bit will probably weigh in the region of 2-3kg, which would cost iro $200,000 in launch costs alone.

It would require a more powerful and heavier drill, increasing launch costs again dramatically

The arm controlling the drill would need to be much more powerful and stronger as a result, increasing weight and power requirements again.

The RTG only delivers 110w of electrical power, not the 3kw needed for your SDS drill. Assuming linear scale the RTG would need to be at least 27 times the size and weight.

Given the size and weight of this thing to mount your drill bit, they would probably need a new heavy launcher to actually get it to Mars.

Curiosity's budget is $2.5Bn, developing a new heavy launcher under government budgets is going to be at least $15Bn.

Developing larger elements of the systems will increase costs again.

I surmise that to add your £8 drill bit (which can't be changed if it fails btw) would increase the cost of the mission by 10x.

Empire says ‘primitive’ Earth not ready for Death Star

annodomini2

Re: That's no Death Star ...

or 'Freedom Star' as I saw posted on another website.

British armed forces get first new pistol since World War II

annodomini2
Thumb Down

Re: Having owned 9s and 44s

DumDum's, Hollow points or other types of expanding bullet are banned in international warfare under the 1899 Hague convention.

annodomini2
Devil

Probably some friend of the Civil servant in the purchasing dept.

annodomini2

Re: 9mm?

Probably have large stocks of 9mm ammo.

Microsoft flings out emergency patch for Iatest gaping IE hole

annodomini2
FAIL

"IE 9 has been available since March 2011"

If you're running vista or above, many corporate environments still have large collections of XP (occasionally older) machines.

White House rejects Death Star petition: '$850qn too pricey'

annodomini2
FAIL

@LDS

Saying there is 'no chance', is like saying to someone 200years ago that we'd all be walking round with personal communication devices.

Doing it in someone's lifetime would be a challenge, but 100-150 years is feasible. It would require more effort than is financially viable, but it's not impossible.

Boffins develop microwave weed-zapper

annodomini2
Joke

Re: Anyone have a video?

Surely there's plenty of videos of people having lunch on the net?

annodomini2
Thumb Down

Re: 2KW of power...

I see this being of greater benefit in a commercial environment, reduction of pesticide usage.

2kW from a tractor engine (may need a bigger alternator) is not a major challenge.

Secondly, if it were for home use, getting 2kW out of batteries for the few minutes it's used wouldn't be a major issue. May need a capacitor or 2, as the article states it only needs to operate for 1 second on each weed.

Getting it CE marked however would be an interesting challenge.

Review: HP ENVY x2 Windows 8 convertible

annodomini2
WTF?

Re: Decent idea but lean on spec...

Given the Nexus 10 has a 2560x1600 in a 10.1" unit at less than half the price of this thing, there is no defence,

'Doomsday' asteroid Apophis more massive than first thought

annodomini2
Thumb Down

Re: Friday 13th

@boltar, The rock that is believed to have killed the Dinosaurs was more than 10x the size of this thing.

Will it do damage, yes!

Is it world killer, no!

annodomini2
FAIL

Re: New glasses required

9M miles, 36,000km pass is in 2029.

Would be interesting to see if it ran into any Geostationary satellites.