1765 posts • joined 24 Mar 2010
"Where are all the space/time believers?"
Every time anyone uses a GPS they are getting data that has been adjusted for the effect of spacetime being distorted by Earth's mass.
This is the most blatant ignoring of data ..
That I've read in a long time.
No wonder you're an AC
"universe to 'see' another approaching it at >2.0c "
Worst than that.
The two proton beams at the LHC each almost travel at c. To an observer outside the beam it appears that the closing speed is ~2c, but to an observer traveling with a proton the closing speed will always appear to be <c
It's one of the reasons relativity always appears so bizarre to non-relativitists Worth looking up 4-velocity.
"Space-time is already bent by gravity"
That's not General Relativity - it's almost the opposite
The presence of matter & energy curves spacetime - the effect of moving through 'bent' spacetime is *perceived* as a fictitious force called gravity.
"trying to do is simply explain the findings"
Oh, good grief !!
What they will be doing first is to try and duplicate the finding, preferably somewhere else with different equipment
Only on the basis of good hard experimental results that disagree with SR ( which has HUGE existing experimental support ) will there be a need for theorists to get involved.
Anything else is pure speculation for speculation's sake
What they want for the generators ..
is Pu 238 which is not fissile but generates a high decay heat
"the cosmos is regenerated"
So was it or was it not regenerated ~5200 years ago ?
Must check the house insurance.
Used extensively in the fine chemical industry - it's a high-boiling point dipolar aprotic solvent meaning it has a high dipole that helps to solubilize materials but isn't capable of ionizing under 'reasonable' conditions.
Reading the data sheet is a bit like looking up your symptoms in a medical dictionary - scary
With correct handling, ventilation and recycling it's no problem. Doesn't mean that you should be using it in a 'normal' inkjet printer though
a pencil !
"You seem to believe you're an expert on this topic.."
I don't need to tell you anything - you already seem to know it all
As for Are they moviing faster than C?
Or are they traveling on a shorter path?
Until the experiment has been repeated by independent labs using diff.equipment then there isn't anything to explain.
As several other people have pointed out your understanding of GR's explanation for gravity is deeply flawed.
"Except that neutrinos don't seem to be effected by gravity."
Why do you keep repeating this - there's no evidence whatsoever that it's true !
Even photons with no rest mass are affected by gravity as predicted by GR
I've just looked at the detector web-site. The detector stack is 25 m long ! so the transit time for a light speed particle would be about 80nS
I assume the detection events are found over the entire length and then averaged in some way
"only releasing it 3 hours later"
Photons interact STRONGLY with matter - that slows them down - that's why light travels slower than c in matter
"And since established theory forbids superluminal travel"
AFAIK it only forbids superluminal speeds* in a vacuum, but in anything else where light is traveling at less than c then these sort of effects (e.g. Cherenkov radiation) are seen.
* Yes, I know the theory only actually forbids reaching light speed not travelling faster
"tunnel through the c barrier "
My understanding of tunneling is that it can ONLY occur if the energy barrier is finite. It then becomes a question of what that means for a FTL transition
"ize and composition of a star 168,000 light years away "
Well try this - for our local star - on average it takes many,many years for a photon, once generated as a gamma ray, to escape from the sun due to the dense interactions in the core.
It's more likely ...
they'll have already read HHGG and will turn up expecting Bournemouth ( or was it Eastbourne ?) to be 'one of the most exciting places in the galaxy'
"Synthetic fuel is actually quite old"
Mostly made by hydrogenating coal !
I've just been in B&Q
and they had 50W equivalents on the shelf with 25 years printed on the packaging.
Mind I think they were @30GBP
"It's about time boffins took this idea seriously."
There's no need to take this seriously - if life can evolve in such diverse conditions you'd basically have to look almost everywhere so why not leave it at that.
"Conservation laws are already gone #"
Particles created near black holes are effectively taking mass from the black hole which will eventually vanish ( if no matter replenishes the black hole ) This is exactly why micro black holes are thought to have a very short lifetime and hence if the LHC somehow managed to create any it wouldn't be a problem
"Poor thing must be busting for the litter tray"
It might be or maybe not - you'll have to look
It would be best ...
if they were standards compliant, clear and up-to-date - forget the eye-candy.
The 6502 was mostly designed by a Motorola team but they moved to MOS when Motorola didn't want the design. THE Motorola 8-bit was the 6809
How many more times...
"Five hundred years ago, everybody knew the Earth was flat"
Almost everyone who THOUGHT about it didn't think it was flat. Most people weren't bothered either way. Sailors and anyone living near the coast knew if wasn't flat, ships would slowly 'sink' below the horizon and then come back
"hat all the possible errors fell well short of 60 nanoseconds."
All the random errors. Doesn't say anything about systematic errors like the clocks and distances.
This latest experiment suggests that one possible systematic error is not the reason for the observed 'speed'
Re : Is this really new?
That's because light interacts strongly with matter so takes some time to escape from the super nova whereas neutrinos don't so set off first at almost c.
"Have they tried firing them in the opposite direction"
I don't think anyone wants to build another CERN accelerator in Italy unless it's absolutely necessary.
Re :"What about the poles? "
The apparent rotation of the earth would be zero as the satellite is intended for geostationary orbit.
It's intended for geostationary - in any case how else would it be able to point at a receiver array ?
I make it ~0.9c but I take your point. It does point out the difficulty ( I mean impossibilty ) of fuelling any type of ship intended for such speeds. Any fuel mass just becomes more mass to accelerate .... recurses !
"Do we *know* that matter...... "
Well of course we do - Dan Brown cleared that up years ago
"But I'm curious to know..."
"but hoping this isn't a sham.."
"reboot 14 times"
Nah, mine will run Linux
As I said "it's still one very large number ( of targets) of which we are 1."
I assumed they may well send multiple probes it's just that the number of 'local targets' is enormous. I think probes doing 'grand tours' is rather far-fetched and in any case would take a long, long time.
Very good but
you should really acknowledge that the quote is from Hitchhikers
There may well be millions of 'advanced civilizations..
but space is BIG, VERY BIG.
Consider if there were 1 million advanced civilizations in the galaxy willing to send probes - they've got a choice of ~4e11 stars to send a probe to. OK they could rule out quite a lot but it's still one very large number of which we are 1. Plus the distance. So we'd be dependant on a civilization developing in our neighbourhood, wanting to send missions, choosing us amongst many, and the probe arriving, not malfunctioning and us spotting it.
"but will is actually kill you"
Yes at concentrations of ~5-10% in air
"Since when was shale gas low carbon?"
Most of the energy comes from burning the hydrogen in methane.
A mole of carbon (12g) burning to CO2 (22.4L )emits ~350 kJ
A mole of methane (16g) burns to CO2 (22.4L) + 2H2O and gives ~900kJ
Re : So which is more likely....
6) The distances are too large and nobody has found a way round that.
they're NOT all inbred today ( including pigs). So where did they come from ?
As a total aside..
I wouldn't have known you in my former life as Von K by any chance ?
If you don't immediately know what I mean that's fine - Von K isn't you
I prefer the quote attributed to Einstein ..
which (roughly) is ..
"In science everything should be as simple as possible ...but no simpler"
"taking two of each animal onto an ark"
Leading to totally inbred animals
"the radioactive decay of a material doesn't ........."
What has radioactive decay to do with atomic clocks ?
"Having just two operating systems available isn’t good for innovation!
And on the desktop ??
At 500 miles range ..
It's going to need some mechanism to steer it just to keep to the earth's curvature unless the ballistic arc just happens to match.
OK if it hits something solid like a building or tank but a thin-walled, unarmoured warship - it will punch a hole clean through unless it hits something with significant resistance/mass.
but it won't be that bad...
So being hit by a heavy, pointy, metal object at terminal velocity is OK ?
"there are quantum differences...."
Do you even know what this means ?
- Vid Hubble 'scope snaps 200,000-ton chunky crumble conundrum
- Updated + vids WHOA: Get a load of Asteroid DX110 JUST MISSING planet EARTH
- 10 years of Facebook Inside Facebook's engineering labs: Hardware heaven, HP hell – PICTURES
- Very fabric of space-time RIPPED apart in latest Hubble pic
- Massive new AIRSHIP to enter commercial service at British dirigible base