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29 progetti disponibili
Progetti (29)
Shipping Container
di Pixel
Barche
24
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Screw Propeller
di Emma
Barche
24
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Building a Mariner's Sextant — The Instrument That Conquered the Oceans
di Astro
Moderno
25
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0
0
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Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
di Astro
Medioevo
35
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Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
di Astro
Medioevo
18
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Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
di Astro
Vichinghi
33
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1
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Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
di Astro
Vichinghi
30
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1
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Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument
di Astro
Medioevo
37
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6
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Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky
di Astro
Ottone
28
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7
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Extracting Salt from Seawater by Boiling — Prehistoric Salt Production
di TheChef
Preistorico
39
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1
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Building a Prehistoric Coracle — A One-Person Bowl Boat from Woven Branches and Animal Hide
di Woody
Animale
32
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Extracting Tyrian Purple from Murex Snails — The Most Precious Colour of Antiquity
di Charlie
ARTE
38
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0
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2
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Making Sepia Ink from Cuttlefish — The Natural Brown Ink of Mediterranean Artists
di Charlie
ARTE
105
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0
0
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0
Tyrian Purple from Murex — The Most Precious Dye in Human History
di Tex
Antico
37
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0
0
2
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Understanding Whale Oil from Blubber Rendering — The Fuel That Lit the World Before Petroleum
di Bob
Biologia
28
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0
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Extracting Omega-3 Fish Oil from Fatty Fish — The Marine Fatty Acids That Built the Brain
di Bob
Biologia
24
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0
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2
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Producing Cod Liver Oil from Atlantic Cod — Norway's Liquid Gold
di Bob
Biologia
30
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0
0
2
0
Understanding Bromine from Seawater Brine — The Only Liquid Non-Metal
di Peter
Chimica
34
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0
0
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0
Pericoloso
Extracting Iodine from Seaweed Ash — The Violet Vapor That Prevents Goiter
di Peter
Chimica
27
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0
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1
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Recovering Magnesium Salts from Seawater — The Lightweight Metal That Burns White
di Peter
Chimica
57
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0
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0