Simple gadgets with scientific and technological content with scrap .

Summary. Gizmo: a steam-propelled ship. Use two cans, a large piece of plastic foam, 30 cm of thick iron wire, pliers, syringe, 100 ml of alcohol.

A third of a can is taken from the bottom and heated for combustion into alcohol.

Do not open a can, prick a small eye on the pull ring with a needle, release the drink, and fill half of the hot water.

The foam is polished into thick flat plates, boat-shaped, thicker, wider, and more buoyant.

Make a shelf of wire to hold the two cans, especially the one that sprays steam.

The alcohol is lit, the water in the bottle is boiled, and the steam propels the boat forward in the water.

Science and technology, small inventions, waste products, materials are easy to find, please hurry up! Urgent.

Hold on. Gizmo: a steam-propelled ship.

With two cans, a large piece of plastic foam, 30 cm of thick iron wire, pliers, syringes, 100 milliliters of alcohol. A can sail dressed up with a mustache from the bottom to take a third and heat it into alcohol burning. Do not open a can, prick a small eye on the pull ring with a needle, release the drink, and fill half of the hot water.

The foam is polished into thick flat plates, boat-shaped, thicker, wider, and more buoyant. Make a shelf of wire to hold the two cans, especially the one that sprays steam. The alcohol is ignited, the water in the bottle is boiled, and the steam propels the boat forward in the state.

Homemade shuttlecocks.

Prepare materials: 1 empty drink bottle, 2 foam fruit net covers, 1 rubber band, 1 glass marble.

Production process:1Take a 250ml empty beverage bottle and cut off the top half of the bottle;

2.Divide the cut part into 8 equal parts, cut it to the neck of the neck with scissors, and then cut each part into the shape of petals of the same size;

3.Put the foam fruit net sleeve on the outside of the bottle and fix it at the mouth of the bottle with a rubber band;

4.Wrap another foamed fruit net around a glass marble, stuff it into the mouth of the bottle, plug it tightly and expose about 1 cm;

5.Cut off half of the ping pong ball, cover the bottom of the hemisphere on the mouth of the bottle, cut the four sides into a whisker, cover the mouth of the bottle and fix it with a rubber band.

6.After beautification and retouching, a homemade shuttlecock was completed. Hit a dozen with a badminton racket and see how it goes.

Tech Crafts: Incredible Widgets, Simple and Practical!

How to make a simple scrap with technology small production:

Material preparation: disposable paper cups, cardboard, paints, brushes, movable eyeballs, white glue, scissors.

Steps: Put the paper cup upside down on the cardboard, draw a circle along the mouth of the cup, and add a pair of feet to the round edge to cut it out as the base of the penguin for later use.

Apply the white glue to the mouth of the paper cup, and paste the base with feet on the mouth of the paper cup.

Draw the wings on paper and cut them out.

Draw the mouth on paper and cut it out.

Fold the wings and mouth into a small strip and stick the white glue to the paper cup in place.

Paint the penguin's body, and be careful to leave its beak and feet empty.

Color the wings and beak of penguins.

Wait until everything is dry, stick the eyes and white belly.

How to make a simple scrap with technology small production:

Material preparation: scissors, paper cups, paper tape, cotton swabs, nails.

Cut open the paper cups, cut out four chair legs in quarters, and fold the chair legs.

Cut out the four legs.

The legs are folded up so that they are partially pressed together for added strength.

Cut out some strips of paper and weave them vertically.

5.Knit a lot together, trim the excess, and be careful to leave a little so that it can be glued to the round edges.

6.Wrap the round edges to look better.

7.It's all wrapped.

8.Prepare nails and cotton swabs, fix the cotton swab with nails so that he crosses fixation.

9.roll part of the decorative strips.

10.Cut another piece of paper into the shape of a backrest and glue the decorative strip on.

11.Completed.

How to make a hydroponic small potted plant container The purpose of making this bonsai is to introduce the use of daily necessities that have been discarded in daily life, and as long as you use your brain, you can easily make them into a cute and delicate small potted plant container! Let's feel the joy of life together! Supplies Needed:

1 400ml or 600ml bottle of mineral water, 2 hair rings for curly hair, a little ceramsite, tools: a paper knife, scissors, spoon. Directions:

1. Cut the water bottle in the middle and divide it in half, and trim the edges of the bottles on both sides to make it round. Caps can be dispensed without. 2. The upper half of the bottle is inverted and inserted into the lower half of the bottle as a container for planting mini plants.

3. Put the mini plants after depotting and removing the soil into the bottle, add the ceramsite into the container with a spoon to fix the position of the plant, add water to the bottle, and add an appropriate amount of water to the water level according to the habits of the plant. 4. Finally, put 2 hair rings on the bottle. Uh, that's the end of a small hydroponic potted plant container.

Mobile phone treasure box In recent years, the replacement of mobile phones can be called the largest wave of technology product updates in history. Many candy-bar phones are naturally replaced and forgotten in drawers. In fact, they can be used as an ancient mysterious key to open the treasure box.

Transformation method: First of all, disassemble the phone, remove the internal parts, simply beautify the interior, and finally glue the magnet between the upper and lower covers to complete this simple transformation. In addition, it is best to add some counterweights to the inside of the phone, so that the weight of the phone is the same as the original.

In this way, valuable diamonds and jewels can be hidden inside, and if you really want to meet the thieves, you can hide from them, because no one will be interested in the unpleasant appearance of the old phone. However, there is one caveat: we have to make sure that no one in the family loses it, otherwise it will be worth the loss.

The mezzanine compartment hidden in the middle of your phone is a place where you can hide important documents or small items. But you have to remember it clearly, otherwise you may unknowingly give important items to **!

The classic "belt buckle is a Nintendo game controller.

Nintendo's consoles, which flourished in the '80s, sold more than 61 million units in almost every household. At the time, the console controller proved to be extraordinary, and it was able to maintain its function and form despite the heavy hands of countless games. To commemorate the days of this solid product, the game controller can be turned into a creative retro belt buckle.

For the best vintage and cool look, you can spray a layer of paint on the surface with a dazzling charm to make it even more eye-catching. Creative ingenuity and nostalgia can be described as a full score. How to effectively waste electrical appliances is not only an economic issue, but also an environmental issue.

Simple electrical renovation may be another path under the trend of environmental protection combined with DIY, leading to the balance of natural ecology and human life, although the rate of some parts may not be good enough, which can be a trigger point. And do you have other ideas for better transformation? Eco-friendly and DIY fun can actually go hand in hand.

Small scientific and technological productions must have a certain scientific content. So I suggest you do a simple electroscope:

1.We know that usually we will find some old batteries in our drawers, but we don't know if there is any power left, and it is troublesome to check it if we put it in and there is no way to know how much power is left. So, you can make a small electroscope.

The method is as simple as this: use a small light bulb, a very small one (like the one on a pendant or toy lamp, which is sold in hardware stores). Then connect two thin enameled wires to the lamp separately.

The other end of the two wires is used to connect the positive and negative poles of the battery you want to inspect. According to the brightness of the small bulb, you can judge the battery level.

A match and a large needle are put together, wrapped tightly in the aluminum foil of the cigarette pack, and the aluminum foil at the end of the match head is bent over and tightened. Then attach a directional tail near the tail and pull the needle out, and it becomes a very simple recoil rocket.

During the experiment, a small rocket was placed on a wire stand, a match was lit, and the part of the aluminum foil tube wrapped in the match head was heated. When the temperature rises to the ignition point of the match head, the matchbox in the foil is ignited, causing the surrounding air to expand dramatically, and the gas is ejected from the tail mouth at high speed. As a result of the recoil, the bazooka flew forward from the rack.

If you wrap two head-to-head matches in aluminum foil, leave them unclosed at both ends. Place it on top and heat it from the middle. When the match in the barrel is lit, the gas is ejected from both ends, and the foil cylinder remains on the rack, thus indicating the conservation of momentum in the system.

The waste is: cigarette boxes, needles and matches, etc

The specific way to make a homemade flashlight is to remove one end of a waste can (such as a Lulu beverage can) with one end of the lid and knock the other end with a round hammer. Roll up two No. 1 batteries with thick corrugated cardboard and put them into the tank with the positive electrode facing up and the negative electrode facing down.

Find a suitable plastic lid (such as a magic big roll lid that can be fastened to Lulu cans) and dig a small circular hole in the lid** in such a size that the bulb is plugged in tightly. Insert the base of the bulb into the small hole. Take a piece of wire hunt and peel off the wire skin at both ends, wrap one end around the lamp base, and pierce a small hole through the side of the plastic cover with the other end.

Place the plastic lid over the can. Check that the bulb and battery are in close contact. At this point, the disposable flashlight is ready.

When using, use your thumb to press the wire threaded from the side wall on the weld that is not painted from the can, the flashlight will glow, and the thumb will jump off the wire, and the flashlight will go out, which is very convenient to use.

You're so lazy, there are so many "Geek Fans" online.

Take a can, cut it into a beautiful shape, take it for a pen, and so on.

You take a large Sprite bottle (cut off the top) and fill it with water, then put a goldfish.

A "fish tank" came out.

3 Waste Utilization Gadgets to Make Your Life Easier.