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My title is probably a bit confusing, no growing medium is used, so the roots are only in water. However, the water has hydroponic nutrients added to it which the plant lives and grows off. So no, one cannot grow plants in water only. They need the minerals found in dirt, as well as oxygen, carbon dioxide and nitrogen.

@@Uncle-Duncan-Shack Oh i see, thx for answering.

Thanks for commenting, appreciate it, take care!

Yes, multimeters will do capacitance, but for inductance it seems to be a dedicated instrument. I measured some small inductors, a 40uH and a 220 uH and those measured correctly. Seems to be ok with small values. Those inductors are on a board with a few buck regulators on, surface mount inductors.

Thanks for watching, glad you enjoyed it!

Here is the circuit diagram: electronicshelponline.blogspot.com/2017/06/philips-hts3510e94-dvd-home-theater.html Here is the Onsemi link: www.onsemi.com/products/power-management/ac-dc-power-conversion/offline-regulators/FSCQ1265RT I bought it from RS Components, there are a few vendors I see that still sell it, as it is an old chip.

Nice, thanks for the advice and awesome comment!

@@Uncle-Duncan-Shack Anytime man!

Thanks, yes that is what it has become 🙂

... funky rose.🙏👍😄

Thank you, appreciate you watching and commenting.

Hi Rob There is certainly going to be an issue with the IIC addressing and registers being different between the two sensors. My guess it that the station is going to need the original sensor installed to get it working again. Best regards, Duncan

@@Uncle-Duncan-Shack Thanks for the quick reply mate. I only changed it because the original went off line, and on inspection looked corroded. When you say original sensor, do you mean one exactly the same?

@@robt6695 Hi Rob, Yeah, that's correct.

Here are quite a few options www.amazon.com/rechargeable-aa-batteries-usb/s?k=rechargeable+aa+batteries+usb

Nope, be sure to have a can on hand to fill it with.

Ah yes . The old "three on the tree"

It is, I did take it up to 3.3 volts and it was drawing 0.6 amps. And things began to smoke, it is a very dead piece of equipment.

Hi Nick, Without a charge regulator, yes it is. The battery is overcharged and destroyed.

Exactly, the energy density of batteries still falls way short of that of hydrocarbons.

@@Uncle-Duncan-Shack Which is why it works for cars and not for ships. Also, let's ponder one day on how many ships and trains are actually Diesel-Electric Hybrids, and why.

@@Uncle-Duncan-Shack I really doubt we will ever see much improvement in batteries for one single reason - safety. The main benefit of hydrocarbons is that engines rely on oxygen witch they take from the atmosphere. Oxygen atoms are HEAVY. To burn 1kg of petrol you need about twice as much oxygen. This makes carrying around petrol both efficient and "safe", as it needs to be mixed with the oxygen before becoming explosive. In comparison, batteries contain their oxidizer and reactant inside, suspended in a electrolyte. If there is an accident and the battery releases it's energy in a short amount of time, depending on the density, you might get your Nokia phone's battery expending and melting, your iPhone's battery catching fire, or your electric scooter exploding. And as Murphy's law states, it's not about IF it's going to happen, but WHEN. About specific energies - that's energy per mass, energy density is per volume, and it's mass what you are lugging around. If you increase the specific energy of a Li-ion's battery by 5-10 times you get TNT. That's why some batteries just expand and melt, others burn. And that's why we have reached a limit. And Petrol, w/o the oxygen as we are not carrying it around, has 50-100 times the specific energy of batteries.

Correct, a hydrocarbon is inert until an oxidizer is combined with it. It cannot produce an exothermic reaction, as you say that is a problem with batteries. There is no way to disrupt the reaction when a battery goes up in flames. And that is only one of many issues on a long list of problems with batteries.

@@traktora1 Except oxygen is all around. That’s why petrol powered cars catch fire 30 times as often as EV’s. EV’s rarely catch fire AT ALL.

Hi Glyn, Thanks for commenting. It was an interesting and fun video to make as this information is easy to research. This is nice to see it all in perspective. Duncan

Glad you enjoyed it Nick. It is rather interesting.

Indeed, the music and movies from our time are, pardon the pun, timeless.

Hi Nick Yeah, it feels very wrong not wearing a safety belt. The ride is quite an experience, I love old cars. Thanks for looking and commenting, good to have you here!

Hi there, Good to see you here! Thanks for watching and commenting, much appreciated. Kind regards, Duncan

Glad you enjoyed it

Thank you! Cheers!

No harm in trying both ways to see what works, hope you get it sorted.

Hi Nick, glad you enjoyed it!

Hi Nick, all the best for 2023 to you too. Thanks for watching and commenting. This cooler is life saver in hot weather and times when I have to run stuff of an inverter as it only draws 35 Watts.

Yes, one can run it of a USB power bank.

It is a round piece of copper foil which is glued to the plastic shell, the wire is soldered to it.

@@Uncle-Duncan-Shack that's what I was looking for, thank you very much.