DIY (Page 45)

PopSci's curated collection of life skills, tech tips, and hands-on projects we think you'll love.

Latest in DIY

Video: DIY Coilgun Turns Voltage into Kilojoule Projectile Power

Video: DIY Coilgun Turns Voltage into Kilojoule Projectile Power

A Husband and Wife Build a 19th-Century Wooden Submarine

A Husband and Wife Build a 19th-Century Wooden Submarine

By Gregory Mone

The Goods: September 2010’s Hottest Gadgets

The Goods: September 2010’s Hottest Gadgets

By Corinne Iozzio

Gray Matter: In Which I Fully Submerge My Hand in Liquid Nitrogen [Video]

Gray Matter: In Which I Fully Submerge My Hand in Liquid Nitrogen [Video]

By Theodore Gray

Gray Matter: How to Start a Fire With Only Compressed Air

Gray Matter: How to Start a Fire With Only Compressed Air

By PopSci Editors

How it Works: The Artillery-Grade 600 MPH Pumpkin Cannon

How it Works: The Artillery-Grade 600 MPH Pumpkin Cannon

By Amanda Schupak

Build a Pro-Level Parts Washer for $75

Build a Pro-Level Parts Washer for $75

By Vin Marshall

How to Build My Newest Air Cannon

How to Build My Newest Air Cannon

By Vin Marshall

Software Shootout: Cheap CAD Apps for DIYers

Software Shootout: Cheap CAD Apps for DIYers

By Vin Marshall

The Shocking Truth: How To Make High-Voltage Sparks

The Shocking Truth: How To Make High-Voltage Sparks

By Vin Marshall

Sponsored Post: Stanley’s New Twists On The Basics

Sponsored Post: Stanley’s New Twists On The Basics

By PopSci Editors

Get Medieval: How to Build a Metal Forge

Get Medieval: How to Build a Metal Forge

By Vin Marshall

Vernier calipers on a light wooden surface.

Tool School: How to get the most precise measurements

By Vin Marshall

Obscure Gear: What the heck is a Variac?

Obscure Gear: What the heck is a Variac?

By Vin Marshall

The Dissection: A Home Electric Meter

The Dissection: A Home Electric Meter

By Vin Marshall

Ferrofluid forming a pile of conical shapes.

How to make ferrofluid

An R2-D2 cooler in the corner of a carpeted room, with video game controllers organized in front of it.

Now this is the droid we’re looking for

By Popular Science Team

Home-Brewing Biochar in Brooklyn

Home-Brewing Biochar in Brooklyn

By Brooke Borel

An old man in a gray suit using a rappelling device to descend from a tall office building.

The 2009 Invention Awards

By Popular Science Team

A lamp made out of a mold from a plastic bottle, based on a 1961 article in Popular Science magazine.

Bright Idea: The plastic bottle lamp

By Joel Barnard

A homemade robot at the 2009 FIRST Robotics Competition in New York City.

Robotic adventures at the FIRST competition

By Paul Gleason

An iPhone with app icons visible.

How to make an iPhone app: part 2

By Dave Prochnow

A person holding a white iPod.

New music from an old iPod

By Laura Silver

A man in blue Popular Science coveralls holding a dumbbell made out of old CDs, pointing at the camera, and yelling.

PopSci 5-Minute Project video: CD dumbbell

By Popular Science Team

Three thin rectangular cork-plugged bottles in a row, the left one nearly full of red vinegar, the middle one half full of yellow vinegar, and the right one about a quarter full of orange vinegar.

Making vinegar at home

By Aki Kamozawa and H. Alexander Talbot

A packet of freeze-dried ice cream with a photo of an astronaut on the packaging.

If it’s good enough for astronauts, it’s good enough for us

By Aki Kamozawa and H. Alexander Talbot

Pectin: not just for jelly

Pectin: not just for jelly

By Aki Kamozawa and H. Alexander Talbot

A DIY pocket theremin.

Build a pocket theremin on the cheap

By Dave Prochnow

A monkey mask on the ground next to a skinned robotic monkey head.

Scare tactics

By Theodore Gray and Paul Wallich

A person wearing white work gloves striking a match on a light brown surface against a blue background.

Making a perfect match

By Theodore Gray

A person purifying silicon in a glass bowl. Top: burning magnesium in a mushroom cloud of white smoke; middle top: burning hydrogen as a flame; middle bottom: burning silane gas as white bursts; bottom: falling silicon particles.

Making silicon from sand

By Theodore Gray

Car H2.0, Where Are You?