StringJunky

It becomes apparent when you compare directly. The Powerbrick is the Li-ion. Click to enlarge. http://www.powertechsystems.eu/en/technics/lithium-ion-vs-lead-acid-battery/ Peukert's Losses

I'm impressed. I never realised, 'til now, the level of finesse that current physics is at with regards to GR/SR and their applications. Einstein's legacy is going to be around a very long time.

Wow! I never saw it like that; the dimensions of the device limit its accuracy. So, if you wanted to go more accurate, further miniaturisation is what's needed?

Whatever your eyes see, your brain will try to turn it into something that makes sense or familiar.

I read recently the possible accuracy of the latest clocks will allow altimeters of 1cm accuracy to be made. I could be wrong, but I think it's at 20cm at the moment. Even at 20cm increments, I think that's a stunning vindication of Relativity. Edit: Found the article. I was a bit off with the accuracy: 2cm

How many places of accuracy do you need for a standard? That number I pulled out was by the USGS. If you look at the table, it seems pretty fine to me. I'm not disagreeing with you really, I'll have to look into what goes into a deriving a standard. Using Litres as Kilos is how I check my fishing scales. Don't you have lots of variables to account for when measuring/standardising the second?

Is volume not standardised?

The scientists are saying GMOs are safe because they've tested them. They didn't just pull it out of a dark place. A contrarian needs to do the same that they've done, or some other revealing test, to demonstrate otherwise. Your main problem seems to be that you, too often, argue from a position of belief or personal principle... cognitive bias is the result. The danger is that one cherry-picks the data that supports a principled position.

1 cm3 of water is 1.00000g at sea level and 4oC. That's a standard anybody can replicate.

Yes, I see now, thanks.

Is that sincere or sarcastic? I think it basically stems from the fact that we are an island nation, so it's a harder transition.

Because it didn't want unfetterred immigration... and largely still doesn't. It's quite a hot potato that will likely have a significant bearing on the outcome of a referendum it's supposed to be having in under two years from now.

OK. I know it might seem terribly pedantic but I've often wondered this.

Is it possible to make a perfectly straight line. if we got a very long piece of string in space, pulled by two people, would it be dead straight? Note: not straight as in geodesically straight.

Given that spacetime is curved, is there such a thing as truly straight?

So, like graphene's structure: layered 2 dimensional hexagon?

Everest climbers use a flow rate of about 3L/min. From what I've been reading about it they could get away with less flow if the delivery system could cope in those temperature and pressure conditions.

An astute thought. I like it... the person wary of a beggar is naught but a beggar himself when the opportunity arises.

That's the kind of thing the UK's BBC would do.

We didn't need to be green because it wasn't a problem, until there were too many of us.

Just thought. Ed and I are not considering that the permanent magnet already has a field, so if we assume that field reaches the electromagnet, the interaction will be instantaneous when it's turned on.

https://www.youtube.com/watch?feature=player_detailpage&v=Xe1a1wHxTyo

It will take a year for the magnet to get the field from the electromagnet. If the electromagnet is then turned off, the magnet will get the field for 1 year.

Read this Kapersky article, then extrapolate that across all devices, and you'll see widespread firmware-malware infection can't be done in an epidemic manner. Really, just a proof-of-concept idea by a few researchers. Add linux into the mix and I'd say the risk is miniscule. All I'd focus on is the boot partition and OS partitions. Nuke the drive with zeros and reinstall the OS.