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765 progetti disponibili • 15 sottocategorie
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Progetti (765)
Building a Roman Stone Arch Bridge — Spanning Rivers with Voussoirs and Cofferdams
di Emma
Romani
66
0
0
0
1
0
Carving a Lodestone Compass Spoon — China's Magnetic Direction Finder
di Penny
Antico
41
0
0
0
0
0
Pericoloso
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
di Charlie
Metal
96
0
0
0
0
0
Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
di Penny
Ottica
56
0
0
0
0
0
Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
di Astro
Metal
62
0
0
0
1
0
Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
di Penny
Ottica
86
0
0
0
1
0
Costruire un Pendolo di Foucault — Provare la Rotazione della Terra con un Peso Oscillante
di Astro
Moderno
107
0
0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans
di Astro
Moderno
68
0
0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
di Astro
Ottone
75
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely
di Astro
Antico
850
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
di Astro
Astronomia
53
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
di Astro
Renaissance (1400–1600)
96
1
0
0
2
0
Understanding Polonium from Uranium Ore — The Deadly Discovery That Launched Nuclear Science
di Peter
Moderno
23
0
0
0
0
0
Understanding Promethium from Nuclear Fission — The Phantom Lanthanide
di Peter
Moderno
14
0
0
0
0
0
Understanding Technetium from Nuclear Fission — The First Artificially Made Element
di Peter
Moderno
26
0
0
0
0
0
Pericoloso
Understanding Thorium from Monazite — The Nuclear Fuel That Could Replace Uranium
di Peter
Nucleare
16
0
0
0
4
0
Understanding Hafnium from Zircon — The Nuclear Fuel Rod Guardian
di Peter
Moderno
30
0
0
0
0
0
Building a Box Bellows — The Breath That Makes Metal Obey Fire
di Emma
Meccanica
90
0
0
0
7
0
Pericoloso
Calibrazione di un termometro usando i due punti fissi di Celsius
di Penny
Fisica
59
0
0
0
0
0
Artemis II - Dati di Volo JPL Horizons
di Astro
Astronomia
564
1
1
1
0
0
Egyptian Water Clock — Constructing a Simple Water Clock (Clepsydra)
di Penny
Egiziani
100
0
0
0
0
0
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