This Computer Ran on Algae for Six Months!

The video discusses a research paper from the University of Cambridge on a photosynthesis-powered battery capable of running a microprocessor. The battery uses microorganisms to generate power, avoiding toxic materials found in traditional batteries. The experiment demonstrated continuous power for over six months using an ARM Cortex M0 Plus. The battery operates in two modes: electrochemical and bioelectrochemical. While not yet practical for high-power devices, this concept could address environmental issues like algae overpopulation.

What is the primary goal of the photosynthesis-powered battery developed by the University of Cambridge?

• To power a microprocessor using inexpensive and common materials

• To develop an energy system using toxic materials

• To create a battery that can power a smartphone

• To replace all traditional lithium-ion batteries

Which microcontroller was used to test the photosynthesis-powered battery's ability to power a CPU?

• Arduino Uno

• ARM Cortex M0 Plus

• Raspberry Pi 4

• Intel Core i7

In the electrochemical mode, what role do the microorganisms play in the battery?

• They act as a backup power source

• They store energy for later use

• They create an optimal environment for aluminum oxidation

• They directly generate the current

Why is it currently impractical to use the photosynthesis-powered battery to run a laptop?

• The battery is too large to fit in a laptop

• It would take millions of such batteries to power a laptop

• It requires a sterile environment to function

• The battery is too expensive to produce

What potential environmental benefit does the photosynthesis-powered battery offer?

• Increasing the lifespan of electronic devices

• Eliminating the need for fossil fuels

• Using excess algae to address water pollution

• Reducing the need for solar panels