Science & Discovery Toys

Description:Name :Hot Air Stirling Engine ModelModel:524378Material: Stainless Steel; base:woodColor:SilverSizes:21.5x10x16.5cm/8.46”x3.9”x6.49”Type:16 Cylinder(8 heating tube+8 cooling tube)A Stirling engine is a heat engine that operates by cyclic compression and expansion of air or...

DescriptionMaterial: PVCColor: WhiteHeight: 12''(30cm) Features:- This human lumbar spinal column consists of the 5 lumbar vertebrae with intervertebral discs, sacrum, coccyx, spinal nerves and dura mater of spinal cord.- This high...