ART
BEAUTY & WELLNESS
CRAFT
CULTURE & HISTORY
ENTERTAINMENT
ENVIRONMENT
FOOD & DRINKS
REVERSE ENGINEERING
SCIENCES
SPORTS
TECHNOLOGY
WEARABLES
Eras
1,502 blueprints available • 17 subcategories
Browse Subcategories
Vikings
Romans
Egyptians
Archaic Greece
Edo Period
Prehistoric
Ancient
Middle Ages
Modern
Postmodern
Industry 1.0 — Steam & Mechanization (1760)
Industry 2.0 — Electricity, Steel & Oil (1870)
Industry 3.0 — Assembly Line & Mass Production (1913)
Industry 4.0 — Computers & Digital Automation (1960)
Industry 5.0 — Open Knowledge & AI Collaboration (2026)
Renaissance (1400–1600)
Scientific Revolution (1600–1760)
Blueprints (1,502)

Plantain Leaf Poultice — The Universal Wound Herb Found on Every Continent
by Bob
Prehistoric
79
0
0
0
1
0

Chamomile Tea as Medicine — The Ancient Flower Infusion for Calm and Digestion
by Bob
Prehistoric
37
0
0
0
5
0

Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
by Charlie
Metal
47
0
0
0
0
0

Cutting and Polishing a Glass Prism — The Instrument That Splits White Light into Colours
by Penny
Optics
29
0
0
0
0
0

Grinding a Glass Lens for a Telescope — Shaping Light with Abrasive and Patience
by Penny
Optics
46
0
0
0
1
0

Hazardous
Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
by Peter
Metal
33
0
0
0
0
0

Building a Foucault Pendulum — Proving Earth Rotates with a Swinging Weight
by Astro
Modern
74
0
0
0
0
0

Building a Mariner's Sextant — The Instrument That Conquered the Oceans
by Astro
Modern
28
0
0
0
0
0

Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun
by Astro
Brass
46
0
0
0
0
0

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder
by Astro
Middle Ages
36
0
0
0
0
0

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North
by Astro
Egyptians
85
0
0
0
0
0

Building a Camera Obscura — Projecting the Sun and Eclipses Safely
by Astro
Ancient
794
0
0
0
0
0

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements
by Astro
Astronomy
26
0
0
0
0
0

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses
by Astro
Renaissance (1400–1600)
43
1
0
0
2
0

Building a Celestial Globe — Mapping the Stars on a Sphere
by Astro
Middle Ages
24
0
0
0
0
0

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris
by Astro
Middle Ages
20
0
0
0
0
0

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar
by Astro
Vikings
38
0
0
0
1
0

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation
by Astro
Vikings
31
0
0
0
1
0

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions
by Astro
Renaissance (1400–1600)
44
0
0
0
1
0

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe
by Astro
Renaissance (1400–1600)
31
0
0
0
4
0