The October 2022 issue of IEEE Spectrum is here!

Close bar

Hybrid Electric Airliners Will Cut Emissions—and Noise

Electric propulsion will develop in the air as it did on the ground, by initially using batteries to assist a fuel-burning generator

11 min read
Photo: Siemens
Photo: Siemens

Editor’s note: On 31 May 2018 a Magnus eFusion electric airplane equipped with a Siemens propulsion system crashed in Hungary, killing the pilot mentioned in this article, János B. (as his name has been given in the Hungarian press) and a passenger. Siemens says it is working with authorities to determine the cause. For more, see the post online at “Prototype Electric Plane Built by Siemens and Magnus Aircraft Crashes in Hungary, Killing Both on Board.”

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

IEEE members explore the 2022 IEEE International Conference on Robotics and Automation 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

How a Dual Curing Adhesive Works

UV22DC80-1 is an abrasion-resistant adhesive system that meets NASA low outgassing specs

1 min read

Master Bond's UV22DC80-1 is a one component, nanosilica filled, dual cure system with UV and heat curing mechanisms.

Master Bond

This sponsored article is brought to you by Master Bond.

Master Bond UV22DC80-1 is a nanosilica filled, dual cure epoxy based system. Nanosilica filled epoxy formulations are designed to further improve performance and processing properties.

The specific filler will play a crucial role in determining key parameters such as viscosity, flow, aging characteristics, strength, shrinkage, hardness, and exotherm. As a dual curing system, UV22DC80-1 cures readily upon exposure to UV light, and will cross link in shadowed out areas when heat is added.

Keep Reading ↓Show less