Zinked and anodized screws.
Zinked and anodized screws.
Zinked and anodized screws frame.
Anodized steel vertical bars with unfocused background
Fluidized Bed Reactor connected to an anode, cathode and reference electrode. Laboratory experiment.
zinc electrowinning workshop closeup
Fluidized Bed Reactor with Purple Phototrophic Bacteria.
vacuum tube
vacuum tube
Two researchers working with Fluidized Bed Reactors in a laboratory.
Vacuum electronic lamp with bulbs. Vintage large vacuum tube that lights up from her desk in lab
vacuum tube
Rechargeable battery on blue background. Positive and negative terminals of rechargeable batteries.
vacuum tube
lamp on the white background
Background made of various alkaline and lithium-ion batteries, positive pole visible.
Close up picture of filaments
Background made of various alkaline and lithium-ion batteries, positive pole visible.
lamp on the white background
Background made of various alkaline and lithium-ion batteries, positive pole visible.
Two old vacuum tubes
Avionics details
zinc electrowinning workshop
Background made of various alkaline and lithium-ion batteries, positive pole visible.
Old vacuum tube
Rechargeable battery on blue background. Selective focus negative terminals of rechargeable battery
Power block.
Background made of various alkaline and lithium-ion batteries, positive pole visible.
lamp on the white background
zinc electrowinning workshop
