Normal wifi transmitters are only 30mW - and can still achieve 10km using a high gain directional antenna. So yeah, 1W is pretty powerfull.

A supercap, with say 1 whole farad of storage, can only provide 1 amp for 1 second losing 1V of charge. Seeing they are only rated for 5V max, that's only a few watts for a few seconds. We *need* to supply a few kW for hours on end - that's about 5 - 7 orders of magnitude away from where we need it.

The client-clients interference doesnt matter so much. Close clients are on the same AP/Channel and are thus participating in collision avoidance. Mid distance clients are on a different channel and thus dont interfere. Long distant clients who are on a re-used channel are so far away the signal is small (essentially noise), and the signal of the access point dominates such that SNR is still good.

From the AP end the directional parttern the antenna works in both directions. They transmit to only a limited number of clients, and receive from only a limited number of clients. Anyone off-lobe is heavily attentuated and becomes part of the noise floor.

means that each AP only sees a limited number of clients transmitting. Any off-lobe clients are heavily attentuated.

It's neither new nor novel, it's just that most low end IT installers havent thought about it before.

It's exactly the same way they deploy mobile cell towers - multiple directional antennas each covering a fixed arc.

CyanogenMod *is* Android.

Instead of being locked into a vendor android and their tweaks, it's an Open source Android release, with a lot of very cool features and improvements. It has a strong online community and sees regular updates, far beyond manufacturer support.

Err, in order to do anything about it the perps would have to stop and get out of the car. That gives police an opportunity to catch them.

Not exactly difficult logic.

No, welders come in AC and DC variants.

There are plenty of switchmode DC arc welders around these days. I bought one the other day for $200 and it does 120A easy.

Only if the device sends out two pulses in quick succession, which resembles the way dolphins send out two pulses in quick succession to cancel out background noise.

Australia copes with usage based fees perfectly fine and everyone here is happy.

Mid level plans currently offer 200 to 400 GB per month for about $50, and that quota does not include certain local sources - eg the ISP's Steam cache, debian mirrors etc. Game distribution is not a problem.

Australia has had usage based plans for many years now and we have worked out the kinds in all of this.

1) Our telecommunications omsbudman has banned excessive overuse charges, so when people hit their cap they dont get suprise fees.

2) When you cap is reached, most ISP's will rate limit you down to 64kBit, so you can still get basic internet/email.

3) Some ISP's offer booster packs so if you have a low end plan and want to cover a heavy month, it's only a 1 off fee (maybe $10 or $20).

4) Competition on price per GB has been strong, so we're now seeing 200+ GB per month for about $50.

Durable yes, but easy no.

They dont fly as slow though and the aerodynamics are quite different. Usually no dihedral for a start, and the lack of a rudder can be a limitation. Lots of fun though!

I beg to differ.

I was amased at the difference in speed and bulk when I switched from firefox to Chrome a year or two ago. The difference was like night and day.

Can you be more arrogant?

Some poeple are too young, too old or two weak to be immunised. Then is also a small percentage of poeple that even though they were immunised, they have lost protection or it failed somehow.

Either way, a number of poeple in the community are at risk due to no fault of their own, and when selfish asshats decided to go un-imunsed due to some rubbish they read in a chain letter it puts people at risk.

Easy solution, use a hydrocyclone. This uses cenfrifugal forces to seperate particles from water.

More than just beer, all fermented products are a staple of civilisation - for both food preserving and flavour. You mention bread and cheese, but there is also yoghurt, salami, soy sauce, tofu & black tea just to mention a few.

Whilst I dont see our space farers making salami any time soon, fermented plant and fungus proteins would certainly be an option.