AstroMedia are always developing fantastic new kits and find the coolest gadgets on the market. See what they came up with this time.

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New Articles

Each time we add a new article to our website we will put it here too, so you don’t have to search around. As new articles arrive, they are added on top and older ones slide down the list. Of course you will also find them in their respective category together with everything else.

Iron Filings

With these cast iron filings you can make magnetic fields visible! You can sprinkle the filings on a sheet of paper or cardboard and hold a magnet underneath, or you put them into a glass jar and hold the magnet against the glass. You get especially impressive results if you also fill the glass with a thin, clear oil. The nearly free-floating filings will adjust themselves into bizarre spiky forms along the magnetic filed lines. Strong neodymium magnets are ideal for these experiments.

Glass and magnet are not included.

Grain size: 0.05-0.15mm

Weight: 40g



No 424.MEP

The Fitzroy Storm Glass - Tear drop shaped

The Storm Glass Barometer came into general use during the early 1700s. Sailors attached this instrument to the mast of their ship and by interpretation of the constantly changing crystal formations within, relied upon it to forecast the weather for nearly 250 years.

Admiral Robert Fitzroy, Captain of the HMS Beagle and later Governor of New Zealand, while in command of Charles Darwin's expedition, conducted a detailed study of the instrument. He refined the formula and published observational guidelines.

Our Fitzroy Storm Glass consists of a sealed glass tube, filled with a mixture of water, ethanol, camphor, potassium nitrate, and ammonium chloride. Depending on the weather conditions you can observe different forms of crystals form and dissolve, helping you to predict the weather.

A very decorative instrument, an interesting conversation piece, and a great present!

(The storm glass is made from glass and children should only handle it under adult supervision!)

Height: 11.3cm, Diameter: 6cm, Lacquered Wooden Stand: 8cm



No 899.FSK

The Golden Dividers

“The Golden Dividers” is not the name of a secret organisation, nor are they made from gold either. It is a kit for a set of dividers with a third leg that allow for determining the golden ratio in nature and artificial objects, like photographs, sculptures, drawings, etc.

The third leg is fitted in a way so that it automatically divides the distance between the two outer legs into the golden ratio.

If you don’t know about the significance of the golden ratio, have a look at this beautiful video!

Includes barrel bolts for the joints and wooden tips.

Construction time: 45 min

Height: 20cm

Download Instructions



No 465.GZK

Here is a link to a beautiful video about the Golden Ratio

The Newton Window Prism

A rainbow for indoors! This large crown glass prism projects beautiful spectral colours into your room.

Hang the prism in a south-west or south-east facing window. When the low standing sun shines through the prism, it projects fields of spectral colours sideways into the room. A slight spin of the prism makes them dance around beautifully.

The English mathematician, physicist, and philosopher Sir Isaac Newton (1643-1727) was one of the founding fathers of the modern theory of colours. Prisms, like this one, were commonly known as a toy in Newton’s time, but he was the first one to use them for scientific experiments, leading to his famous Theory of Colours.

Includes box, strong hanger, and a description of Newton’s famous prism experiments.

Dimensions: 30 x 30 x 30 x 200 mm



No 577.NFP

The Magnetic Egg Timer

A special egg timer: the sand doesn’t land on a uniform hill, but forms strange structures!

In a normal egg timer the sand always forms a flat cone onto whose tip the sand falls from above. This sand in this egg timer does the same, until you stand it in its wooden stand. Suddenly the sand forms a round hedgehog-like spiny structure. As soon as you lift the egg timer from the stand, the structure dissolves into the well-known cone shape. How is that possible?

The secret lies in the small, but strong neodymium magnet in the stand and in the fact that the sand consists of cast iron granules that are attracted to the magnet.

Includes wooden stand with magnet

Dimensions: 150 x 55 x 55 mm

Download Instructions



No 464.MSU

The Day-Night Lamp

In 1910 the German Poet Christian Morgenstern wrote a poem about an inventor and his “Tagnachtlampe”, a lamp that turns day into night when you switch it on. 49 years later, Carl Barks had his Gyro Gearloose invent a similar device, the “gloom light”. Both ideas were never realised, not even filed for patent!

Our Day-Night Lamp takes a tiny amount of light during day time (so the day is darkened by a tiny amount), stores it in a battery, and lets it shine through an amber LED at night.

A perfect night light for the bedroom window sill!

Cardboard kit (not pre-cut) including solar panel with switch, rechargeable battery, and LED.

Construction time: 45 min

Dimensions: 120 x 120 x 85 mm

Download instructions



No 461.TNL

The Goethe Wall Barometer

Our Goethe Wall Barometer is hand blown from a traditional glass formula called “forest glass” in Lauscha, Thuringia in Germany. It is a copy of the original barometer from 1792/93 that was found in Goethe’s house in Weimar after his death. The slight green tinge of the glass and its texture make it look like a real antique.

The barometer is a sealed glass vessel with a long open spout and a glass ring on the top so it can be hung on the wall. On a day with average air pressure, fill the barometer about halfway with boiled or distilled water. You can use the enclosed dye tablet to colour the water, which increases the visibility of the water level in the spout. The higher the air pressure rises, the lower the water level in the spout will be. This indicates fair weather. If the air pressure drops, usually an indication of bad weather or a storm, the water level in the spout rises.

Make sure you don’t overfill the barometer to avoid water stains on your furniture or carpet when the pressure drops very low. To ensure accurate pressure readings, hang the barometer in a place with constant temperature (not over a radiator or in direct sunshine).

A very decorative instrument, an interesting conversation piece, and a great present!

(The barometer is made from glass and children should only handle it under adult supervision!)

Height: 245mm, Width 102mm,   Depth: 80mm



No 888.GWB

The Klein Bottle

Our Klein Bottle is hand blown exclusively for us in Lauscha, Thuringia in Germany. A Klein Bottle is an example of a non-orientable surface: a three-dimensional body that doesn't have an inside or outside, it has just one surface! You might be more familiar with the two-dimensional Moebius Strip: if you take a long strip of paper, twist it once and glue the ends together, you have a paper ring with just one surface. If you trace your finger along the surface of a Moebius Strip, you will see that you cover both sides without having to go across the edge. A Klein Bottle has the same property: you can get from the inside to the outside without having to cross the edge of a spout. In three dimensions this is only possible by cutting a hole into the side of the bottle and leading the neck through this opening. This is not an easy thing to do and you need to be a very experienced glass blower to accomplish it.

You can even fill the bottle with a fluid and then stand it on its opening. We should mention though that filling and emptying the bottle is not easy because of the trapped air, and cleaning the inside of the  bottle is virtually impossible.

A very decorative mathematical model, an interesting conversation piece, and a great present!

(Our Klein Bottle is made from glass and children should only handle it under adult supervision!)

Height: 16cm



No 889.KLF

The Platonic Solids

The five platonic solids are named after the Greek philosopher Plato, who described them extensively in his dialogue “Timaeus”. He saw in them the smallest, invisible building blocks of the world and assigned them to the classical elements. However, the five solids have been known for much longer, as for example 5000 year old engraved stones from Scotland show.

With this uncomplicated kit you can build all five Platonic Solids with a uniform side length of 5 cm. The kit also includes four hangers so the solids can be hung as a mobile.

Cardboard kit (not pre-cut), includes hangers to form a mobile

High quality, glossy print

Uniform side length of the solids: 5 cm

Download instructions



No 686.PLP

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10 of one article: 5% discount

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The Nitinol Engine

The heart of this unusual thermal engine is a thin ring of Nitinol wire (0.3mm). Some warm water is enough to make the Nitinol Engine run. Nitinol is an alloy of nickel and titanium which has exceptional properties: at low temperatures it is soft and bendy, but as soon as it is heated above a certain transition temperature, it instantly becomes hard and flexible like spring steel. As soon as the temperature drops again, it returns to its bendy state. Nitinol is also a so-called memory metal: above the transition temperature it instantly assumes any shape that has been impressed during manufacture.

The transition temperature of our wire ring is 45ºC above which it becomes stiff and straight. Nevertheless the part of the wire that is immersed in the warm water lies around the drive wheel. When it straightens out, it is forced to move off the wheel and out of the water where it becomes bendy again. At the same time it pulls a new piece of wire into the water and the process starts again, leading to a constant rotation of the drive wheel.

The principle of this engine was developed by Frederic Wang in 1985. It works with only a small temperature difference and shows great potential for future applications.

This AstroMedia kit is the first mass-produced engine of its type, worldwide. Anybody interested in engineering and physics will be fascinated by this kit. A fantastic model and a great present!

Pre-punched cardboard kit, includes Nitinol wire ring, aluminium shafts, PVC bearings, wooden axles, plastic drive wheel and running wheel, etc.

Size: 140 x 166 x 213 mm

Download Instructions



No 463.NTM

Here is a video of the running Nitinol Engine