In one sentence, describe what the following article is about: Since 1 side of the cube will be blocked from a light source, shade it in heavily so it's noticeably dark. Then, apply medium or light pressure to shade the top of the box and the other visible side of the cube. To make the cube even more realistic, draw a square-shaped shadow coming from the dark side of the cube.
Summary: Shade 1 side of the cube dark and use light pressure to shade the other sides.

In one sentence, describe what the following article is about: A joist is a length of timber or metal that provides structural support. It's easiest to use a stud finder to locate them in the ceiling. Mark the spot with a nail or chalk mark. You might want to start by checking for joists near lighting fixtures since they're often installed along joists. Measure 16 inches (40.64 cm) from the first joist and check for the presence of the next one. Joists are usually 16 inches to 24 inches (40.64 to 60.96 cm) apart, so you should find it close to those measurements. Mark a chalk line that shows the joists across the entire ceiling. Furring strips are thin 1" by 3" strips of wood that you attach at a right angle to your joists so that they are flush against the wall. You simply staple a nail into the strip. Use a level and make sure that the furring strip is level. If not, add a shim underneath to make it level. Make sure that your furring strips are at even intervals and that they fall through the center of your tiles. You may want to hold up tiles for reference as you install the furring strips. Snap a chalk line down the center of the first strip closest to the wall. Align the corner tile with the line and the wall, then staple it to the furring strip, using at least 2 staples along the sides and 1 in each corner. Continue placing edge tiles. You may need to use a straight edge to cut a tile to fit around a fixture. When you reach a fixture hole, measure the size and shape of the hole and locate where it will be on the ceiling tile you're preparing to place. Use those measurements to draw and cut the hole. If you choose to add borders to the edges of the ceiling, use a staple or nail gun and secure the molding to the wall. Fill the holes with wood filler and paint the molding. Molding can make your room look more polished or finished. It can also hide edges of tiles that have been cut.
Summary: Locate one of the joists. Find the other joists. Install the furring strips. Apply the first tile in the corner. Staple the tiles across the ceiling.Once you've stapled the edge tiles, work your way across the ceiling filling in with whole tiles. Attach molding to the borders, optional.

In one sentence, describe what the following article is about: This makes a torch that can burn for 10 or more minutes.
Summary:
Melt enough paraffin wax in a double boiler to be able to coat with wax about a half of an inch (1 centimeter) deep. Wrap some twine or jute string around several matches from the bottom, to just below the wax quickly.