The simplest: make a pen holder! Do you have any unused glass cups at home? Or a teacup that you dropped the handle on, try anything that's heavy enough to hold a pen. Find a nice piece of cloth, or colored paper, to make a dress for the cup. Kraft paper is good too, wrap it around the cup and measure it, cut out the right piece, with more at the joints...
Homemade Kongming Lantern (1) Cut pieces of thin paper to the specifications shown. The first piece of paper on one side and the second side glued together, and then the third, fourth ...... Glue the third and fourth pieces of paper together until you have a ball with a diameter of 60 centimeters that is hollowed out at both ends. ....
This is a higher magnification single lens simple matchbox microscope. It is easy to carry and use. The materials for making it are also easy to find: a matchbox shell, a small glass bead (you can take the small glass bead at the front end of the spotlight electric bead as a substitute), two match inner boxes, a small piece of glass, a small piece of glass mirror, and adhesive tape and glue.
The production process is very simple, first a matchbox inner box hollow, will be cut at one end of the crossbar, at the other end of the middle of a size just put the glass bead hole, put the glass bead in, covered with a center with the same glass bead diameter of the same size of the hole in the center of the white paper, the first step is completed. The second step is to put another match inside the box is open to the lens of a centimeter or so of a small hole, hole on the stick a piece of glass, with a piece of tape, so the carrier is considered to be done. Lens holder just cut a square hole in the side of the logo for the entry port on the line. The fourth and final step, load the reflector: the back of the mirror glued to the tape, tape folded back ninety degrees, glued to the lower end of the inner box of the matchbox, so that the mirror into a tilted shape.
Use the object to be observed on the carrier table on the glass, and then insert the lens holder so that the small window toward the light source. Adjust the height and you can see the magnified object.
This item relates to a direction indicator, which is an improved compass. The compass is capable of indicating direction, but only points north and south. In order to accurately identify other directions, a dial is placed below the compass. When used, the dial is adjusted (rotated) so that the "south" in the scale corresponds to the compass, and then the dial correctly shows each direction. This kind of compass display is accurate, but there is such a problem: need to adjust the dial, the use is not convenient.
The purpose of this project is to provide a direction indicator that can accurately display any direction on its own without the need for adjustment between the compass and the dial.
The purpose of this project is realized as follows: a dial and a star-shaped pointer are made of a thin material (e.g., paper, plastic, etc.), and the dial and the star-shaped pointer are connected to a compass. Dial "South" and the compass in line with the compass, when the compass swing drive dial, star-shaped pointer. The compass always guides, and the dial and star hand always show the correct direction.
Because the Direction Indicator automatically displays each direction correctly, there is no need to make adjustments between the compass and the dial, so it is much easier to use.
The specific structure of this item has a case, compass and dial, and star-shaped pointer connection.