Cocconeis

Use in primary schools, secondary schools and universities. The model shows a siliceous cell wall of microscopic unicellular algae - diatoms.  These are two pennate diatoms, abundant in fresh waters, Navicula and Cocconeis. The basic structures of the shell (frustule) correspond to reality. The frustule consists of two parts that fit together like the lid and bottom of a box (separable, it is possible to add chloroplasts, nucleus, ...). Navicula has a raphe (slit) on each half of the frustule (Cocconeis only on one), and both diatoms have striae (pores in a line on the surface).
Use in primary school: unicellular organisms, unicellular algae most widespread in fresh waters, it is possible to add chloroplasts, nucleus, etc., photosynthesis, movement, in the geological past of the Earth - formation of diatomaceous earth (filtration of beer, wine, building material, insulating material, dynamite, toothpaste), formation of oil (southern deposits) - from organic matter of diatoms.
Use at secondary school, university: unicellular algae, pennate diatoms, construction of diatom frustule, from two parts (epitheca, hypotheca), raphe, striae, pores, movement of diatoms, determination of two representatives: Navicula, Cocconeis. Photosynthesis, function in the ecosystem, human use.

COMMON PUFFBALL

The fruiting bodies of the Common Puffball are club-shaped and white or grey in colour. The surface is covered with nipples. When the spores are ripe, a bore opens at the top of the fruiting body, through which the spores are expelled. The inside of young fruiting bodies is white, while older fruiting bodies have a cottony brown flesh inside. The Common Puffball is an edible mushroom when young. It grows abundantly in groups in deciduous and coniferous forests, at the edge of paths, or in meadows.
The models of the puffball show adult fruiting bodies. If they are printed with white filament, there is no need to finish them, just clean off any excess filament fibres.

DEATHCAP

The Deathcap has an olive green to brownish cap, which is hemispherical in the young fruiting body, then arched to flat in the older fruiting body. In the white form of this species, the cap may be pure white. The underside of the cap has white gills. These are covered by a partial veil in the young fruiting body, which remains in the form of a smooth or grooved ring on a cylindrical shaft in older fruit. The stipe is of varying deep green colour on a white ground. When young, the fruiting body is enveloped by a white universal veil, the remnants of which remain on the adult as a white volva at the base of the stipe. The flesh is white. The Deathcap is a deadly poisonous mushroom. It is abundant in deciduous forests and can be found alone or in groups under oaks, hornbeams, or beeches, for example.
Models of the Deathcap depict different stages of fruiting body development - one model shows a young fruiting body covered by a partial veil and the other a mature fruiting body. An important part of the adult model is the volva, which is only attached to the stipe; sticking it on would prevent the two halves of the fruiting body from separating. The gills, ring, and volva should be painted white, the stipe can be given a slightly green tinge and the hat should be shaded green.

Earthquake Shaker Table

Earthquake Simulation

Earthquake shaker tables are useful in seismic research. The table can mimic motions of an earthquake so that structures can be subjected to the conditions of true ground movements. All parts should be scaled to 80% to fit the print area of the eDee 3D printer. Assembly is easy.