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You guys probably already know about this, but for anyone that hasn't seen it already, there's a really good bird-song app called 'Merlin Bird ID' - start the app on your phone and click 'record' and it listens for birds and identifies them for you. Really quite addictive, and it reveals many birds ...

Haven't seen humming bird hawkmoth for many years - we had loads one summer when winds blew them off-course. Im guessing they're most likely seen on south coast. They're unusual in that they fly during the day. When I was young, all the groundsel weeds would be covered in orange/black stripy cinneba...

http://theconversation.com/radioisotope-generators-inside-the-nuclear-batteries-that-power-faraway-spacecraft-248504 They use 'RTGs' -nuclear thermal energy source + thermo-electric piles (TEGs) to power deep-space probes and for probes expected to last long durations with little or no sunshine - It...

Is the battery cave the basement or crawl space? Or is it a secret?!

Damn! Went to order some this afternoon to take a leap into the great unknown - and they're now sold out.

Think I want to go for something reasonably sophisticated so that I minimise abuse of cells. Main goal is to avoid user-intervention if possible - just like an off-the-shelf battery pack, and to maximise safety - so no danger of anything catching fire! I generally charge to 100% and let the batterie...

Im guessing no thermo-nuclear generators on-board - as these use the temperature difference between the hot nuclear fuel and the cold (usually of deep space). Not much use for a venus trip - as plenty of sunshine on the way there, and temperature on the surface is probably higher than the radioactiv...

Thankyou - have located the threads.....there is a lot of stuff in there!! Im very tempted to have a go. Got 20kWh at the moment, but I'm getting battery-envy reading about the size of your battery! My recent twin-ME3000P setup has dropped my daily import from about 2kWh down to 0.5kWh (unfortunatel...

Has anyone done a 'how to?' on creating a DIY Fogstar battery to work with the ME3000SP? Tempted to buy some and make a new battery bank, but don't know how the cells are connected together and what to use as a BMS etc, settings etc. Sounds like quite a few of you guys have already done this - is th...

Saw on the news that it may have landed in S. England. If it has the titanium canisters they tend to use for storing propellant, they normally survive reentry, and I imagine the heat shield would survive re-entry, so hard to imagine there's nothing left to reach the ground. Conspiracy theory - the U...