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Messages - syhprum

Pages: [1] 2 3 ... 136
1
Technology / Re: Will radio replace the energy grid?
« on: 21/11/2014 19:43:14 »
We get vast amounts electromagnetic radiation from a nearby nuclear fusion device about 150 million Km away, the frequency is much higher than 45MHz but it is easy to capture when the Earths rotation does not get in the way.
The amount that your "radio towers " could pump out would be utterly trivial in comparison.

2
I think estimate of a 10% payback on average from the cost of a ticket was pessimistic I have always understood  that for every pound you spent on tickets on average you got back 25 pence but you would have to buy tickets for a long time to achieve this.
From a financial point of view the best bet is not to buy tickets ! 

3
Geek Speak / Re: Latest windows update
« on: 20/11/2014 16:59:25 »
I thought I would be clever and move the 9860 drivers into the 9879 version, don't try this at home it kills the keyboard operation and there is no way to recover only a reload !!!! 

4
Geek Speak / Re: Latest windows update
« on: 16/11/2014 22:41:31 »
The lights not lights not running I could live with but I get frequent dropouts of IE11 which takes about 30 seconds to reload the page !, I have gone back to Windows 8.1 + Start8 which is pretty stable.

5
Technology / Re: baby swallowed computer parts
« on: 15/11/2014 20:48:50 »
I think apart from size causing a blockage the only thing that would cause poisoning would be a battery they are real dangerous to injest

6
Geek Speak / Latest windows update
« on: 15/11/2014 20:45:44 »
Has anyone tried windows10 9878 some things are improved in the GUI but my version has an annoying thing the caps lock and number lock lights do not come on on the keyboard  although the function are OK.

7
Technology / Re: When will space tourism commence?
« on: 15/11/2014 13:52:53 »
What are we to do with all this Helium 3 that we are supposed to be mining on the Moon if we store it until the fusion reactors are built it will probably all have decayed due to radio activity.

8
Technology / Philae power budget
« on: 14/11/2014 22:31:20 »
I should not presume to tell the ESA team how to operate their comet lander but I am surprised that if it is receiving maybe 20% of the anticipated sunlight needed to maintain its batteries charged could not all scientific programs could be shut down leaving enough power to maintain communications until the comet gets closer to the sun.

9
Physics, Astronomy & Cosmology / Re: Superluminal X-Rays?
« on: 12/11/2014 16:57:40 »
All electromagnetic radiation has to find its way thru a sea of CMBR photons perhaps high energy X-rays are better at blasting a path

10
I have noticed a change in the south east UK in recent years we used to have a cold November a mild December and any thing up to three cold months in the new year but recently the cold weather has not started until December but warming up by Xmas but little real cold weather in the new year.
The UK is a strange place for weather the late December and late June temperatures are often both about 12C.
 

11
Geek Speak / Printing anomalies
« on: 11/11/2014 22:18:19 »
I have a rather antique printer 1995 (LaserJet 4 M Plus) vintage that normally serves me well but today I tried to print out a 29 page PDF document using Acrobat 10.0 and ended up having to print one page at a time with missed portions and many strange error messages.
So I hunted around and found a free and simple PDF reader Sumatra PDF that worked like a dream.
I only have windows 8.1 and Windows 10 systems maybe it would have been OK with an older system.

PS I Tried with Puppy Linux but could not get the usb printer to connect

12
I hate speculating about lottery numbers, it would be heart breaking if one wrote down a series of numbers for some reason or other, did not buy a ticket and then found you had written down the winning sequence although normally you would be better off by the price of a ticket.

13
I wonder how the American anti abortion fanatics feel about all these poor sperm that don't get to perform the task that god intended for them

14
It is frequently proposed that large optical telescopes should be built on the moon but now that terrestrial telescopes of 30 meters or larger with adaptive optics are being built which will far out perform Hubble there seems to be little incentive.
There may be a case for radio telescopes on the far side of the moon to receive low frequencies free of interference but the cost would be very high and would yield little science.
Gravity wave receivers should work well in space if technical problems can be overcome.

15
Technology / How are lotto numbers devised
« on: 06/11/2014 19:13:28 »
I would not dream of buying a lotto ticket or even filling in a number on an un entered one in case by some mischance it proved to be a winner.
Out of curiosity I listened to the spiel of a conman selling books for $99 telling you how to win and got curious as to how the numbers are computed.

16
Technology / Re: When will space tourism commence?
« on: 05/11/2014 21:35:05 »
The latest comments seem to indicate that it was not a engine failure that caused the crash but premature deployment of the landing mode.

17
They are certainly not a hoax they really work but the only snag is the capital cost rather like that other free lunch solar panels.

18
When you say that the gravitational field can not be shielded you must be implying that the graviton has zero mass as even the very low mass Neutrino can be shielded against in theory.

19
Driverless cars have been around since the eighteen twenties we call them railway carriges

20
Technology / Re: renewable energy??? any ideas?
« on: 22/10/2014 20:07:08 »
On a recent tourist trip down the Rhine I noticed a small tidal generator similar to those in use in Iraq I do not think it was a very economical source of power only a tourist attraction.

21
Technology / Re: renewable energy??? any ideas?
« on: 22/10/2014 20:00:10 »
I think you will find the 5kW Russian device was actually a fission reactor not a thermo electric generator, as Alancalverd points out the only PU isotope that provides a useful amount  of heat is U238 which is extremely expensive and difficult to produce to the extent that designers of satellite PSU,s are planning to use the more efficient Stirling engines rather than Peltier junctions

22
Evan_au

Such talk is going to depress the value of the shares in the company I intend to set up to sell heat pump-sterling engine systems.

23
I have always believed that the energy in radiation and that locked up in matter is counterbalanced by the negative gravitational energy so that the net sum is zero.

24
If it is thermal insulation that is required there are many light weight foam like materials that will provide a comparable degree of insulation to that provided by a vacuum.

25
A few submarines have been built to carry aircraft but generally it is not a very happy combination.
Many submarines can launch cruise missiles while submerged I guess they are aircraft of a sort.

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