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  • Fitzroy Storm Glass (18th Century Weather Prediction Device)

    N

    NightHawkInLight is correct that a storm glass is driven by temperature but the size and habit of the crystals is also affected by the rate of change of temperature. Tiny snow flake like crystals occur when the temperature falls rapidly. Larger fern like crystals form when the temperature drops slowly. If the temperature raises quickly smaller crystals dissolve fist. If the temperature raises slowly all the crystals dissolve and lots of clear liquid is visible.So it is best just outside a bedroom window to tell you what happened during the early morning and will give you some idea of the way the day is heading.Don't be afraid to experiment a little with the ingredients, if during the course of a year the storm glass is nearly always clear in your climate add a little more of the solid i...

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    NightHawkInLight is correct that a storm glass is driven by temperature but the size and habit of the crystals is also affected by the rate of change of temperature. Tiny snow flake like crystals occur when the temperature falls rapidly. Larger fern like crystals form when the temperature drops slowly. If the temperature raises quickly smaller crystals dissolve fist. If the temperature raises slowly all the crystals dissolve and lots of clear liquid is visible.So it is best just outside a bedroom window to tell you what happened during the early morning and will give you some idea of the way the day is heading.Don't be afraid to experiment a little with the ingredients, if during the course of a year the storm glass is nearly always clear in your climate add a little more of the solid ingredients. If it is always a solid mass of crystals add more of the 100 proof spirit. Keep track of your proportions so you can make one for your friends when they want one.From a health and safety point of view be aware: Potassium nitrate is a powerful oxidizer and both the alcohol and the camphor are flammable and the camphor fumes are a bit of health a hazard. (read up Wikapedia before using unfamiliar compounds).

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  • Converting a Lumix DMC FZ-7 Camera to Infrared

    Actually it really only affects the focal range so if you have problems it is in macro or long range focusing.

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  • Light_Lab commented on Light_Lab's instructable Copy Stand - Cheap and easy to build8 months ago
    Copy Stand - Cheap and easy to build

    BTW I am guessing you mean 3/8" not 5/8"?

    Very cool, I was once looking at using a piece of metal shelving sprayed white. I thought I could use magnetic strips from fridge door seals as aligning guides.

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  • Light_Lab commented on m1k3y's instructable How to block/kill RFID chips1 year ago
    How to block/kill RFID chips

    The chip for pets just responds with a unique number that can't be changed; most vets have a scanner and can give you the number. Take the number to your city council and they will reference the number to your address. Also, go to vets and other places in your area that a cat might be handed into and see if they have a registry that will record your cat's code vs your address.

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  • Make Glass Mirrors With Silver Nitrate, Sugar,  Ammonia and Sodium Hydroxide

    I have just seen this and I can't just let it pass without a few notes of caution: Silver Nitrate is corrosive and can destroy skin tissue. It is easy to make Silver Nitride by accident as described unless it is done with exact control of the chemistry and concentrations. Silver Nitride is a very sensitive explosive: https://en.wikipedia.org/wiki/Silver_nitrideI was temporarily blind for 2 hours from a Silver Nitride explosion when experimenting with silvering mirrors when I was a kid. Silver Nitride also forms a mirror so it is hard to tell if you have Ag or Ag3N.

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  • Converting a Lumix DMC FZ-7 Camera to Infrared

    Nice shots. I have converted a couple of cameras to IR, I tend to think the older digital cameras work best for conversion; my best is a Nikon 995.I noticed you just removed the hot filter, I usually substitute a broad range filter to keep the focal length the same. Have you had any problems focusing your modified FZ-7?

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  • Light_Lab followed Photography channel 1 year ago