According to the European Commission, the EU's Energy Label has been a key driver in helping consumers choose more energy-efficient products since its implementation for household appliances in 1994.

The Energy efficiency class is a key rating on the European Commission's Energy Label, which is mandatory for all mobile ...

What happens if the enginge goes out on a small single engine general aviation aircraft? The answer is could be catastophic without proper training. My CFI is excellent and does a good job ...

From CTAs to checkout tweaks, this guide shares practical A/B test ideas to help you get more clicks, signups, and sales.

A new sodium-air fuel cell could be a more practical and sustainable power source (Joule 2025, DOI: 10.1016/j.joule.2025.101962). The fuel cell has an energy density of over 1,000 W h/kg, roughly ...

In what may be a world first, Venus Aerospace has, for the first time in the US, successfully flown a Rotating Detonation Rocket Engine (RDRE) that uses supersonic explosions to create thrust ...

Houston-based Venus Aerospace flew a rotating detonation rocket engine last week, proving a key technology for the high-speed plane it's developing to fly from Los Angeles to Tokyo in two hours.

Long duration tests are scheduled for the coming days, along with refinements to fuel mixture ratios and higher-pressure scenarios to test the limits of the new test cell and engines.

Personalized landing pages don’t have to mean endless variants. See how dynamic content can scale intent-driven experiences efficiently.

After back-to-back failures, SpaceX tests its fixes on the next Starship A notice to mariners suggests SpaceX's next Starship test flight could launch as soon as May 21.

Several test methods, such as OCV, ACIR, and DCIR, are often applied to battery cells for incoming inspection. What are the pros and cons of each?

WASHINGTON — Rocket propulsion startup Ursa Major Technologies has secured a $28.5 million contract from the U.S. Air Force Research Laboratory to conduct the first flight test of its Draper ...