NGHỆ THUẬT
LÀM ĐẸP VÀ SỨC KHỎE
THỦ CÔNG
VĂN HÓA VÀ LỊCH SỬ
GIẢI TRÍ
MÔI TRƯỜNG
THỰC PHẨM VÀ ĐỒ UỐNG
KỸ THUẬT NGƯỢC
KHOA HỌC
THỂ THAO
CÔNG NGHỆ
THIẾT BỊ ĐEO

KHOA HỌC

2.427 bản thiết kế có sẵn • 11 danh mục con

Bản thiết kế (2.427)

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge
Nguy hiểm

Making Tin-Lead Solder — The Ancient Alloy That Joins Metals Without a Forge

bởi PeterSE

Cổ đại

55
0
0
0
1
0
Xây dựng Con lắc Foucault — Chứng minh sự quay của Trái đất

Xây dựng Con lắc Foucault — Chứng minh sự quay của Trái đất

bởi AstroIS

Hiện đại

121
0
0
0
0
0
Building a Mariner's Sextant — The Instrument That Conquered the Oceans

Building a Mariner's Sextant — The Instrument That Conquered the Oceans

bởi AstroIS

Hiện đại

76
0
0
0
0
0
Building a Universal Ring Dial — The Portable Brass Instrument That Tells Time by the Sun

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

bởi AstroIS

Renaissance (1400–1600)

75
0
0
0
0
0
Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

Building an Arab Kamal — The Indian Ocean Navigator's Latitude Finder

bởi AstroIS

Thời Trung cổ

71
0
0
0
0
0
Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

Building a Merkhet — The Egyptian Star Transit Instrument for Finding True North

bởi AstroIS

Ai Cập

237
0
0
0
0
0
Building a Camera Obscura — Projecting the Sun and Eclipses Safely

Building a Camera Obscura — Projecting the Sun and Eclipses Safely

bởi AstroIS

Cổ đại

855
0
0
0
0
0
Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

bởi AstroIS

Thiên văn học

55
0
0
0
0
0
Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

bởi AstroIS

Renaissance (1400–1600)

104
1
0
0
2
0
Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Celestial Globe — Mapping the Stars on a Sphere

bởi AstroIS

Thời Trung cổ

55
0
0
0
0
0
Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

bởi AstroIS

Thời Trung cổ

61
0
0
0
0
0
Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

bởi AstroIS

Người Viking

66
0
0
0
1
0
Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

bởi AstroIS

Người Viking

64
0
0
0
1
0
Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

bởi AstroIS

Renaissance (1400–1600)

77
0
0
0
1
0
Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

bởi AstroIS

Renaissance (1400–1600)

70
0
0
0
4
0
Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

bởi AstroIS

Renaissance (1400–1600)

83
0
0
0
3
0
Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

bởi AstroIS

Thời Trung cổ

105
0
0
0
6
0
Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

bởi AstroIS

Cổ đại

87
0
0
0
7
0
Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

bởi AstroIS

Cổ đại

95
0
0
0
3
0
Làm natron từ tro gỗ

Làm natron từ tro gỗ

bởi CharlieDE

Hóa học

134
0
0
0
0
0
Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting

Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting

bởi ForgeNO

Gia công kim loại

50
0
0
0
0
0
Making a Stone Hoe — The First Agricultural Tool

Making a Stone Hoe — The First Agricultural Tool

bởi MaryFI

Thời tiền sử

78
0
0
0
0
0
Making Bakelite — The First Fully Synthetic Plastic That Launched the Age of Polymers
Nguy hiểm

Making Bakelite — The First Fully Synthetic Plastic That Launched the Age of Polymers

bởi CharlieDE

Công nghiệp

61
0
0
0
1
0
Synthesising Aspirin — The Reaction That Founded Modern Pharmaceuticals

Synthesising Aspirin — The Reaction That Founded Modern Pharmaceuticals

bởi CharlieDE

Công nghiệp

59
0
0
0
1
0
Hiển thị 24 trong 2427