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  • Billions in rare earth elements may be hiding in America’s coal ash
    Scientists are looking to diatoms, sea sponges, and plants for a cleaner way to recover rare earth elements and other valuable minerals hidden inside coal ash, red mud, and mine tailings. The bio-inspired approach could turn massive industrial waste piles into useful materials while reducing energy use, harsh chemicals, and reliance on new mining.
  • Scientists turn seawater into fresh water without harmful brine
    Scientists have developed a solar-powered desalination system that turns seawater into fresh water while removing nearly all of the leftover salt as a solid instead of producing harmful brine. The self-cleaning technology could also recover valuable minerals such as lithium, potentially turning desalination waste into a useful resource.
  • Scientists are building a microscope powered by a quantum computer
    Scientists are combining an electron microscope with a quantum computer to squeeze far more information from each electron. The approach could reveal faint details with fewer electrons, helping protect fragile samples that conventional microscopy can damage.
  • Tiny nanolaser could cut computer energy use in half
    Scientists have created an ultra-small nanolaser that could eventually allow microchips to transmit information with light instead of electricity, potentially making computers faster while cutting energy use roughly in half. Thousands of the lasers could fit on a single chip, opening possibilities for more efficient data centers, smartphones, and advanced medical sensors.
  • Quantum oscillations defy expectations in this exotic material
    Scientists have uncovered an unusual form of electron behavior in zirconium pentatelluride, a quantum material that can act as both an insulator and a conductor. Under temperatures near absolute zero and magnetic fields reaching 60 tesla, electrons produced quantum oscillations that continued even after conventional physics predicted they should disappear.
  • A new recipe unlocks “impossible” nanocrystals for LEDs, implants, and superconductors
    Scientists have cracked a long-standing chemistry problem, creating nanocrystals from tough metal nitrides that were previously extremely difficult to produce at this scale. The breakthrough could turn familiar materials used in LEDs, implants, and superconductors into building blocks for flexible electronics, printable devices, and other technologies.

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Educational graphic introducing Timer0 of the PIC16F877A microcontroller. On the left, a stopwatch icon and the question "Alarm, Timers, how does it work?" highlight practical applications. On the right, a microcontroller image and the MPLAB X IDE logo indicate the programming environment used for learning timer-based functionality.
PIC16F877A Timer0 tutorial
The Timer0 module is an 8-bit timer/counter that is included with all 8-bit PIC MCU devices. The Timer0 is more than just a timer....
Educational slide introducing the use of hardware timers in the PIC16F877A microcontroller. The left side features a stopwatch icon and the question “Alarm, Timers, how does it work?”, while the right side shows the microcontroller and MPLAB X IDE logo. The image sets the stage for learning about Timer0, Timer1, and Timer2 functionality.
PIC Microcontrollers Timers
In this tutorial, we will learn what are "Timers"; we will explain this with examples using the Microcontroller PIC16F877A. For this tutorial is may be...
Featured image of how to use interrupts in the PIC16F877A
How to use interrupts in microcontrollers
In this tutorial we will learn how to use external interrupts in PIC microcontrollers. We will go in depth on how to set it up...
Educational graphic showing how to interface 4x3 matrix keypads with a PIC16F877A microcontroller. The image includes two physical keypads, a schematic layout of the 4x3 keypad connections, the PIC16F877A chip, and the MPLAB X IDE logo. Text reads "Interfacing PIC16F877A with 4x3 keypads."
Interfacing 4×3 keypads with PIC16F877A
In this tutorial, we will provide an overview of the 4x3 membrane keypad. The keypad serves as a reliable and budget-friendly tool for having inputs...
Featured image of the PIC16F877A - Transistors and beyond part 3
Control Possibilities with PIC16F877A: Relays, Optos, H Bridges (Part 3 of 3)
Most microcontrollers have limited current sink or current source on their pins, including the PIC16F877A. However, certain projects may require larger currents than the maximum...
Educational graphic showing the interface of a PIC16F877A microcontroller with N-channel MOSFETs. It includes a circuit symbol and cross-sectional diagram of a MOSFET, the microcontroller chip, and MPLAB X IDE logo. The title reads “PIC16F877A and MOSFETs Part 2.”
Interfacing PIC16F877A with MOSFETS (Part 2 of 3)
Most microcontrollers have a limited current sink or current source on the pins, the PIC16F877A is no exception. However, for certain projects you may want...