dcarch

Not all LEDs are dimmable. Not all dimmers can dim dimmable LEDs dcarch

Rare earth magnets are so strong, you can hang the knives by their tips. Nothing touches the body of the blades, and no wood strips to get germy and dirty. Germy and dirty? Yes, I have a few knives that I don't clean after every use. They are for dirty cutting. dcarch

Vertically. dcarch

I use my convection/rotisserie toaster over for roasting coffee beans. I bet this one can do a very good job roasting coffee also. dcarch

Weather report says there will be another week before frost comes. So I am rushing to finish construction of my insulated greenhouse for all my potted plants and for seed starting for next year. dcarch

Cardoon, which is in the same family as artichokes, tastes like artichoke. dcarch

90° bends are always a problem for regular fans to overcome back pressure. A centrifugal blower can work much better. But they don't make residential kitchen exhaust fans using centrifugal blowers. BTW, exhaust fans using more than one fan is not any better. Because the fans work against each other, not with each other. dcarch

But a check valve cuts off water at any pressure. dcarch

The exhaust air goes outside. Inline fan, using turbine blades design, can overcome duct resistance. You will notice recently, many leaf blowers are using turbine inline fan to move air. An inline fan can be anywhere in the duct system, giving you some flexibility in locating the fan. dcarch

There are many methods to pressure zone a highrise plumbing system. A check valve cannot regulate water pressure. It cuts off water 100%. A pressure regulating valve is what typically used. dcarch

Have you, your architect/contractor looked into inline exhaust fans? I have a superstition against recirculating kitchen exhaust fans. dcarch

Water pipes have to take a lot of static pressure and dynamic pressure. The bottom floor at the World trade Center will need to withstand almost 800 PSI of pressure. dcarch

Yes - everything is being done to code; plumbing has passed inspection. This might interest you: Code or not Code. It may be a good idea to insulate both the hot water and cold water copper pipes. Hot water pipes insulated will give you hot water quicked. Cold water pipes insulated prevents sweating on a humid day. dcarch

I think you can eat the green part of the leaves as well, I only cooked the stems, in the PC for about 30 minutes, but my PC has been modified to go high pressure (not recommended for others). Just try it out for 30 minutes, if not good re PC for another 30 minutes. dcarch

I am very surprised that artichoke leaves are not eaten by people. People eat cardoon (cardone) don't they? Cardoon and artichoke are in closely related family. They always say that cardoon tastes like artichoke. Therefore, just use any cardoon recipes. I made it in my pressure cooker. quick and easy. Pick the younger leaves. They are very tender with no fiber. dcarch

Over on the Garden forum, we talked about growing artichokes. It is not easy to grow artichokes in my NY zone 6. The few I have are getting very big, but no blossoms yet. There will not be enough time for blossoms. Frost is coming. Well I decided to eat the artichoke leaves. They taste like artichokes, but a little stronger. Very tender and delicious. dcarch mango/lime shrimps on artichoke leaf stems.

I have found many interesting fungi in my garden. Here are some: The last picture is a puff ball, size of a basket ball. dcarch

LED can be very cool running, but high power LEDs are over driven, so they generate a lot of heat. They require heatsinks and cooling fans, otherwise they get burned out in seconds. On a per watt basis, LEDs produce more light than incandescent lights. Not as much as they claim, because they don't tell you the power inverter/supply/driver electronics also use up some power. You should never use incandescent light for a greenhouse, even some manufacturers call those incandescent lights "grow lights" That is because there is no such thing as LED TV screens. Also, BTW, there is no such thing as white LEDs. Your dad is a scientist. He did not heat the doghouse with incandescent light. He was only heating the dog with incandescent IR light. Using infrared, you can get heated up in freezing air temperature. You can broil food with the oven door open, for instance. dcarch

It would not be a sommelier cup. Sommelier cups normally are dish shaped, for better aroma airing. dcarch

Actually, for heating I will just use a small light bulb. Better yet, LED lights, which give more light per watt. Some seeds may need light stimulation to germinate. It takes about 15 minutes to build a very sturdy foam box using, yes, duct tape. Very encouraging for my garden. :-) dcarch

That is true about Peltier efficiency. However, it is the only device which can simply cool and heat without major plumbing setup. It can also instantly cool/heat in rapid cycling without being damaged like a compressor/freon machine can. An aquarium temperature ($20?) controller can turn on cooling or heating functions with great precision, better than a bread proofing box. If I built the box with 1" thick rigid foam board, efficiency should not be a big issue. dcarch

KennethT, you just inspired me (another one here who is as crazy as you ) to work on an idea. In seed starting, there are many seeds with temperature requirements to germinate. Some need specific warmth, some need stratification, and some need both. A seed starting chamber using a Peltier junction device would seem perfect in that the same device can cool or heat by simple reversal of polarity. My next year's project. dcarch

I took out my tube of heat sink grease. It says silicone heat sink grease. CPU operation is more critical, may be it is different compound. dcarch

Rather than having a fan blowing on a heat sink, I wonder if it would make sense to attach the peltier device directly to the bottom of a big pot of water (with silicone grease for better heat transfer). The peltier device will be making a pot of hot water at the sametime cooling whatever you are trying to cool, using no energy to power a fan. Metal/water contact is more efficient than air in conductivity anyway. By flipping a polarity switch, you can reverse the hot/cool process, not that you need to do that. dcarch

Boating supply stores have many non-slip solutions. dcarch