The October 2022 issue of IEEE Spectrum is here!

Close bar

Augmented Reality in a Contact Lens

A new generation of contact lenses built with very small circuits and LEDs promises bionic eyesight

10 min read
Image: Raygun Studio
Image: Raygun Studio

The human eye is a perceptual powerhouse. It can see millions of colors, adjust easily to shifting light conditions, and transmit information to the brain at a rate exceeding that of a high-speed Internet connection.

But why stop there?

Keep reading...Show less

This article is for IEEE members only. Join IEEE to access our full archive.

Join the world’s largest professional organization devoted to engineering and applied sciences and get access to all of Spectrum’s articles, podcasts, and special reports. Learn more →

If you're already an IEEE member, please sign in to continue reading.

Membership includes:

  • Get unlimited access to IEEE Spectrum content
  • Follow your favorite topics to create a personalized feed of IEEE Spectrum content
  • Save Spectrum articles to read later
  • Network with other technology professionals
  • Establish a professional profile
  • Create a group to share and collaborate on projects
  • Discover IEEE events and activities
  • Join and participate in discussions

Make IEEE Your Home Base

The association offers networking opportunities and professional development programs

3 min read
group of young people smiling at the camera

These IEEE members connected with each other at this year's IEEE International Conference on Robotics and Automation, held in London.

IEEE

The word home evokes a sense of belonging and welcoming. IEEE aims to create a similar feeling by offering services for members at every stage of their career and by building a community among them.

IEEE President and CEO K.J. Ray Liu is committed to making IEEE the professional home for members. As he announced in his March column in The Institute, he’s doing that by “examining ways in which the organization could evolve to best meet the needs of all technical professionals in the years ahead.”

Keep Reading ↓Show less

Home Heating With Hydrogen: Ill-Advised as it Sounds

Several studies reveal serious drawbacks

3 min read
Two white boilers mounted on a wood wall, with pipes and tubes.

An old central heating boiler (L) and a hydrogen boiler inside the Hydrogen Experience Center in the Netherlands.

Sem van der Wal/ANP/Getty Images

Hydrogen, if it comes from splitting water with renewable electricity, has its role as a climate-friendly energy source. It could help decarbonize challenging sectors like heavy industry, shipping, and aviation.

But hydrogen makes absolutely no sense for heating homes and buildings, according to a new review of several international studies. It is simply much too expensive and inefficient for that purpose, says Jan Rosenow, Europe director at the Regulatory Assistance Project, an energy think tank in Brussels, who authored the commentary published in the journal Joule.

Keep Reading ↓Show less

Modeling Microfluidic Organ-on-a-Chip Devices

Register for this webinar to enhance your modeling and design processes for microfluidic organ-on-a-chip devices using COMSOL Multiphysics

1 min read
Comsol Logo
Comsol

If you want to enhance your modeling and design processes for microfluidic organ-on-a-chip devices, tune into this webinar.

You will learn methods for simulating the performance and behavior of microfluidic organ-on-a-chip devices and microphysiological systems in COMSOL Multiphysics. Additionally, you will see how to couple multiple physical effects in your model, including chemical transport, particle tracing, and fluid–structure interaction. You will also learn how to distill simulation output to find key design parameters and obtain a high-level description of system performance and behavior.

Keep Reading ↓Show less