A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis (spins it in a circle), applying a potentially strong force perpendicular to the axis of spin (outward). The centrifuge works using the sedimentation principle, where the centripetal acceleration causes denser substances and particles to move outward in the radial direction. At the same time, objects that are less dense are displaced and move to the center. In a laboratory centrifuge that uses sample tubes, the radial acceleration causes denser particles to settle to the bottom of the tube, while low-density substances rise to the top (source: Wikipedia)

In this case, this DIY-Centrifuge is the result of a collaborative project between MUSE-FabLab and Franco Modena from MUSE-Science museum of Trento.

Here you can find the list of the principal materials:

1 x Kingduino Uno – Atmel Atmega 328-PU

1 x IIC/I2C/TWI Serial 2004 20×4 LCD Module For Kingduino UNO MEGA R3

1 x Turnigy D2205-2600KV 28g Brushless Motor CCW

1 x Aerostar 20A Electronic Speed Controller with 2A BEC (2~4S)

1 x Turnigy 12v 2-3S Basic Balance Charger

1 x Turnigy 2200mAh 3S 25C Lipo Pack

1 x Optek Retro-reflective Photoelectric Sensor

1 x Single Sided Matrix Board FR4

1 x 18 Pulse Incremental Mechanical Rotary Encoder