SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
BAADAYE YA KIJANI
REVERSE ENGINEERING
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Astronomia
Mipango 29 inapatikana • Vijamii 17
Vinjari Vijamii
Miradi (29)
Aryabhata's Spinning Earth — A Torch, a Ball, and Day and Night
na Astro
Astronomia
17
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0
0
0
0
Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String
na Astro
Scientific Revolution (1600–1760)
15
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0
0
0
0
Measuring the Earth from a Single Mountain — Al-Biruni's Horizon-Dip Method
na Astro
Zama za Kati
16
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0
0
0
0
Measuring How Far the Sun Is Compared to the Moon — Aristarchus' Half-Moon Method
na Astro
Astronomia
13
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0
0
0
0
Measuring the Circumference of the Earth — Eratosthenes' Shadow Method
na Astro
Mathematics
14
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0
0
0
0
Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
na Penny
Nafasi
18
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0
0
0
0
Maudhui hatari
Casting and Grinding a Speculum Metal Telescope Mirror — Newton's Reflecting Alloy
na Astro
Fizikia
28
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0
0
0
0
Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
na Penny
Astronomia
33
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0
0
0
0
Tengeneza Kigerezo cha Foucault — Thibitisha Mzunguko wa Dunia
na Astro
Optics
46
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0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans
na Astro
Uchimbaji chuma
20
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0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
na Astro
Optics
28
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0
0
0
0
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
na Astro
Astronomia
22
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0
0
0
0
Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
na Astro
Wamisri
18
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0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely
na Astro
Nafasi
18
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0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
na Astro
Astronomia
19
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0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
na Astro
Optics
29
1
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0
1
0
Building a Celestial Globe — Mapping the Stars on a Sphere
na Astro
Uchimbaji chuma
16
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0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
na Astro
Archeoastronomia
9
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0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
na Astro
Archeoastronomia
24
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0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
na Astro
Nafasi
24
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0
0
1
0