Making an oil lamp

Two DIY Oil Lamps - Soot is from blowing out the wick instead of dowsing it in oil
Hurricane Sandy is hovering over us at the moment. Since we expect power to go out today (and stay off for several days), I thought Id share how to make a simple oil lamp from materials most people have at home.

Youll need:

• pliers (needle nose pliers are best)
• a thick glass jar or glass (works with goblets as well)
• oil (olive oil is ideal if you have it)
• wick (can make from cotton cloth if you dont have wicks)

1. Twist a coil in the end of your wire. This will hold the wick and prevent the flame from burning down the wick.
2. Bend the wire so the wick is held in the center of your jar. It helps to bend a small loop in the wire where it will be outside the jar to help you lift the wire out of the jar for lighting your wick.
3. Push the wick up through the coil. Pull the wick so it is only an 1/8th of an inch over the wire coil. The end of the wick should be long enough to reach the bottom of your jar.
4. Place the wire and wick in your jar.
5. Add oil to your jar so it comes just below your wire coil. You can pour the oil over the wick if you want.
6. Pull the wire/wick up and light it. Oil doesnt like to burn, so it wont catch very quickly.
7. When the wick has caught, lower the wire/wick down into the jar.
8. If the flame is too high, life the wire/wick out and tug gently on the bottom of the wick to reduce the amount of wick sticking out above the coil.
9. When you want to extinguish the flame, dip the flaming end of the wick in the oil. The oil will not catch on fire, but will immediately cool the hot end of the wick. This will prevent the wick from smoking, which it will do if you just blow it out.

If you dont have wicks in your utility drawer, you can cut strips of cloth from either a cotton t-shirt or a used tea towel. These home-made wicks will last longer if you lay them in a shallow dish of water, then sprinkle liberally with salt. Let them soak for an hour, then let them dry. For more information, read Ruth deJaureguis article on How to Make a Wick for an Oil Lamp Using Recycled Materials.

Here are some more pictures.

Materials you can use to make your oil lamp

A closer view of the wire/wick assembly

Lighting a second wick from a lamp that is already burning

PS - As always, be careful with fire. The top of the jar will get hot.

Read More..

No Heaters and the Fish are Still Alive

A picture of one of my bluegills from last summer

One of the most fundamental tenets of medical ethics is primum non nocere, or "first, do no harm." In the practice of medicine, this means it may be better to do nothing rather than commit an act that risks causing more harm than good. When it comes to aquaponics, Ive taken this advice to heart when it comes to feeding my fish and heating their environment.

I covered the greenhouse in early January but I didnt get around to connecting my rocket mass heater and solar heaters. Last year I was worried about either exhaust leaks or melting things in the case of the rocket mass heater or pumping cold air into the greenhouse during overcast days in the case of the solar heater. I eventually figured out how to overcome these difficulties. But 24 hours isnt enough time to do everything I want to accomplish in a day. As a result, my lovely heaters havent been in use this winter. When I say "No Heaters and the Fish are Still Alive," I mean there has been no supplemental heat at all this entire winter.

And yet the fish (goldfish, bluegill) have survived.

I had a scare while we were fixing dinner for Chinese New Year. My son-in-law mentioned the green onions in the dishes were from the garden. Since I hadnt been to the garden that day, I asked about my goldfish. The goldfish live in the sump tank, and the sump tank water levels had gotten low that week.

He said, "I didnt see any goldfish. But the water is only a quarter inch deep in that tank."

I was sure the fish were dead. But when I got a chance to go out and inspect, I saw that the sump tank, though nearly empty, still had a couple of inches in the bottom. The pump is elevated on a pad so it stops pumping water when the level drops that low. The three goldfish were still in there, alive and well though cold.

In the same vein, Ive worried about the bluegill. During cold snaps, Ive gone for days and even weeks without visiting the greenhouse, much less feeding the fish. Whenever that happens, I begin to worry that Ive got a tank full of cold water filled with dead fish. Im just hard-wired to think an animal has to eat every day. Intellectually I know its actually more harmful to feed fish when the water is nearly freezing. But the anxiety monster grows until I get a chance to go out and lift the lid of the tank. So far Ive not had a single bluegill die.

I did lose my single surviving minnow, a fathead minnow or toughie (tuffie) as they are sometimes called. However, these minnows are only supposed to have a lifespan of 14 months. Its rather astounding that this solitary fish had managed to survive for at least 22 months after I bought him. If I thought my toughie had died of disease, I would have disposed of him outside the garden. Old age, however, isnt a communicable disease.Since the water was near freezing, I slid him into the bluegill tank, where one of the fish made a quick meal of my toughies mortal remains.

Though nighttime temperatures will continue to drop below freezing, the weather should warm from here on out, on average. More importantly, the days will become increasingly warm, and the longer days will begin pumping heat energy into the greenhouse, to the point that I may have to start lifting the side walls by April or May.


Average highs, lows, and rainfall

Read More..