tonytran2015

Instructables

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  Slide-Sky-Disks With Grid Masks Showing Azimuths and Altitudes.

  26 2.5K
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  Identifying Moderately Bright Navigational Stars.

  3 953
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  Slide Sky-Map for Displaying Tropical Stars.

  1 912
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  Detecting Counterfeit Currency, Australian Polymer Dollars.

  15 3.7K
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  Detecting Counterfeit Currency, US Dollars.

  7 3.6K
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  Measuring Angles and Distances for Outdoor Survival.

  19 2.6K
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  Detecting Counterfeit Polymer Vietnamese Money

  1 7.1K
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  Finding North and Time by Stars in the Tropics

  8 1.5K
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  Finding North Direction and Time by Any Bright Star.

  60 3.0K
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  Shadow Stick Navigation and Graph of Solar Paths.

  106 6.0K
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  Selecting and Using Magnetic Compasses

  108 8.7K
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  Mirror for Making Fire Using Sunlight.

  60 11K
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  Finding Direction, Distance and Navigating to a Distant Base by Stars, P.2: Fine Reading of Latitude.

  17 1.2K
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  Lighting Cigarettes and Making Fire With Sunlight

  20 6.0K
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  Finding Direction, Distance and Navigating to a Distant Base by Stars.

  31 1.9K
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  Finding Time to Sunrise With Star Maps

  8 1.5K
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  Finding Time to Sunset With Bare Hands

  33 1.8K
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  ​Finding North and Time With Unclear Sky

  16 1.9K
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  Identifying Petroleum Spirits As Liquid Fuel for Lighters.

  10 4.6K
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  Determining Local Magnetic Declination by a Magnetic Compass

  16 1.2K
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  Cleaning Chewing Gum Stains on Clothes.

  2 4.0K
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  Finding North Direction and Time by Stars

  44 5.5K
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  Reshaping the Plastic Lense of a Cheap Compass

  5 757
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  Finding North Direction and Time Using the Moon P3- Moon Surface Features

  12 2.3K
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  Finding North Direction and Time From the Moon, P2: Using Horn Line

  16 1.4K
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  Caution in Finding North by Bi-sector Line

  23 1.4K
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  Finding North Direction and Time From the Moon

  30 5.7K
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  Locating the Sun by Polarizing Sunglasses.

  9 2.5K
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  Beware of Perilous Flips by Magnetic Compasses

  12 2.7K
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  Finding North Direction and Time From the Sun Using Bare Hands.

  19 2.3K
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  Finding North With a Watch More Accurately P2

  15 1.1K
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  Finding North With a Watch More Accurately

  17 2.2K