A study published in the Annals of the Entomological Society of America, offers the most detailed view to date of how this unusual fly develops and gives live birth—a rare phenomenon among flies.

The study describes how the embryos grow substantially in utero, likely receiving maternal nourishment during development, a reproductive mode known as adenotrophic viviparity.

The highly directional nature of this process makes it far less effective on vertical surfaces that aren't under direct line of sight to the sky. The researchers were able to overcome these major pain ...

By highly directional antenna, the wireless antenna market is divided into parabolic dish, grid antenna, Yagi-Uda antenna, and others. The parabolic dish segment dominated the market in 2024.

Generally all that’s needed is a five-watt handheld transceiver and a directional antenna. Like most things in the ham radio world, though, it takes a certain amount of skill which can’t be ...

The resulting polar plot shows the performace of the antenna at each angle, and unsurprisingly I proved to myself that a HB9CV is indeed a directional antenna.

The best digital TV antenna deal right now gets you a Vansky OTA antenna on Amazon for less than $20. Plus apply a coupon for additional 12% savings.

Along with the announcement of the THEOS DIFB, Deity Microphones is also announcing the Deity Sharkfin Antenna, the SF1, with a range of 470MHz to 1GHz. This high-gain directional antenna features an ...

Researchers developed a new type of ceramic fiber aerogel, featuring highly anisotropic thermal conductivity and extreme thermal stability through directional bio-inspired design.

Holographic beamforming can potentially create highly directional beams with precise control over signal propagation. Using metamaterials and software-defined antennas, these systems enhance spectral ...

In experiments, the researchers found that when the metalens operates as a receiving antenna, it focuses an incident centimeter-wave into a tight (diffraction-limited) focal spot, and that when it ...