The electret microphone is very used in electronic projects, due to its low cost, size, good sensitivity, and mechanical resistance.
Category: Materials
Coating inspired in chameleon for buildings
A new material inspired by a chameleon serves to keep the heat during cold days and lower temperatures during hot days.
New nanomesh production method for electronics
Was invented a new method for production of a semiconductor nanomesh, which will be used in new electronic components.
An atom observed by X-rays
For the first time, a single atom received a X-rays beam, identifying the elemente and revealing information about the chemical state.
Hysteresis: what is it?
The hysteresis is very common on materials and systems. It’s the capacity to keep a property, after remove the stimulus that induces this property.
Self-healing robot that detects damage
Was built a quadrupedal self-healing robot, that detects damage and stops moving until it finishes to self-repair.
3D priting of nanostructures
New materials can be 3D printed, to create many nanostructures and improve materials’ resistance without increasing weight.
Organic solar panels
Organic solar panels are photovoltaic panels of third generation. They can greatly increase the competitiveness of solar energy.
Changesite-(Y), the new mineral discovery on the Moon
On the samples brought by the Chinese probe Chang’e 5, was found a new mineral, received the name Changesite-(Y).
“Rainbow”, the first rare earth maglev train
China has built a maglev train that uses permanent magnets made of rare earth for levitation.