NewsPronto

 
The Times


.

USA Conversation

The Conversation USA

The Conversation USA

Listening for the right radio signals could be an effective way to track small drones

  • Written by Iain Boyd, Director of the Center for National Security Initiatives and Professor of Aerospace Engineering Sciences, University of Colorado Boulder
imageSmall drones can be hard to track at night.Kevin Carter/Getty Images

The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern.

Some of this recent increase in activity may be related to a September 2023 change in U.S....

Read more: Listening for the right radio signals could be an effective way to track small drones

More Articles ...

  1. At 88, Pope Francis dances the tango with the global Catholic Church amid its culture wars
  2. More than 60 years later, Langston Hughes’ ‘Black Nativity’ is still a pillar of African American theater
  3. Vaccine misinformation distorts science – a biochemist explains how RFK Jr. and his lawyer’s claims threaten public health
  4. No flood gauges, no warning: 99% of US streams are off the radar amid rising flash flood risks – we saw the harm in 2024
  5. I’m a former assistant DA who works with survivors of sex trafficking − here’s why a recent Philly sting marks a shift in how Pennsylvania confronts the commercial sex industry
  6. At Hanukkah, a celebration of eternal light − from the desert tabernacle to synagogues today
  7. Trump’s 2017 tax cuts expire soon − study shows they made income inequality worse and especially hurt Black Americans
  8. How liberals lost comedy − and helped Trump win
  9. Is news bias fueled by journalists supplying slanted views or readers’ demanding them? An economist weighs in
  10. Colleges’ career success stats don’t tell the whole story about how their graduates are doing after they get their degree
  11. 5 of the most frustrating health insurer tactics and why they exist
  12. Cómo la canela, la nuez moscada y el jengibre se convirtieron en los aromas de las vacaciones de invierno, lejos de sus orígenes tropicales
  13. Cómo la Navidad se convirtió en una tradición navideña estadounidense, con un Papá Noel, regalos y un árbol
  14. How nostalgia led to the invention of the first Christmas card
  15. Retailers that make it harder to return stuff face backlash from their customers
  16. Why does red wine cause headaches? Our research points to a compound found in the grapes’ skin
  17. Supporting a grieving loved one on holidays and special occasions: Practical tips from a clinical psychologist
  18. After wildfires, ranchers face 2-year delay to graze cattle on federal land – is it doing more harm than good?
  19. How does the International Space Station orbit Earth without burning up?
  20. Twins were the norm for our ancient primate ancestors − one baby at a time had evolutionary advantages
  21. How cities are reinventing the public-private partnership − 4 lessons from around the globe
  22. Black adults with long COVID report higher levels of hopelessness and suicidal thoughts − new research
  23. Only 0.16% of all US charitable giving supports LGBTQ+ groups despite recent increases
  24. How humanities classes benefit students in the workplace and combat loneliness
  25. Marco Rubio is no friend of Havana − but does Trump’s pick for secretary of state mean Cuba policy is set?
  26. FBI director guides the agency in confronting complex international threats, investigating federal crimes and running 55 field offices
  27. Ferns’ ability to evolve ‘backward’ offers insights into the meandering path of evolution
  28. Response to CEO killing reveals antipathy toward health insurers − but entire patchwork system is to blame for ill feeling
  29. Why ‘A Charlie Brown Christmas’ almost didn’t air − and why it endures
  30. Brain inflammation may be the reason behind muscle fatigue after infection and injury
  31. We developed a way to use light to dismantle PFAS ‘forever chemicals’ – long-lasting environmental pollutants
  32. Stop and think: An undervalued approach in a world that short-circuits thoughtful political judgment
  33. Why Quincy Jones should be prominently featured in US music education − his absence reflects how racial segregation still shapes American classrooms
  34. Santa, maybe? Why we have different names for who ‘hurries down the chimney’ on Christmas
  35. South Korea shook a presidential power grab – failure to impeach now risks damaging democracy
  36. NASA’s crew capsule had heat shield issues during Artemis I − an aerospace expert on these critical spacecraft components
  37. Vaccines and values: When you’re having a tough conversation about medicine, don’t just pile on evidence − listen to someone’s ‘moral foundations’
  38. Why winter makes you more vulnerable to colds – a public health nurse explains the science behind the season
  39. 15% of global population lives within a few miles of a coast − and the number is growing rapidly
  40. ‘Administrative law’ sounds dry but likely will be key to success or failure of Trump’s plans for government reform
  41. Why the religious beliefs of Trump defense pick Pete Hegseth matter
  42. We interviewed 30 Black public school teachers in Philadelphia to understand why so many are leaving the profession
  43. US role in Syria is unclear in wake of Assad’s fall from power
  44. What the US Supreme Court will consider when it rules on gender-affirming care for trans children
  45. What’s next for Albertsons after calling off its $25B grocery merger with Kroger: More lawsuits
  46. Assad’s fall in Syria will further weaken Hezbollah and curtails Tehran’s ‘Iranization’ of region
  47. Blood tests are currently one-size-fits-all − machine learning can pinpoint what’s truly ‘normal’ for each patient
  48. High rises made out of wood? What matters in whether ‘mass timber’ buildings are sustainable
  49. Trump wants to use the Alien Enemies Act to deport immigrants – but the 18th-century law has been invoked only during times of war
  50. Why being forced to precisely follow a curriculum harms teachers and students