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American Focus > Blog > Tech and Science > Readers discuss black holes’ trippy effects on time, banned swimsuits
Tech and Science

Readers discuss black holes’ trippy effects on time, banned swimsuits

Last updated: September 7, 2024 6:49 am
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Readers discuss black holes’ trippy effects on time, banned swimsuits
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Extreme Climate Survey





Science News is collecting reader questions about how to navigate our planet’s changing climate.


What do you want to know about extreme heat and how it can lead to extreme weather events?














In the realm of black holes, a fascinating phenomenon occurs due to extreme time dilation near the event horizon, as explained by theoretical physicist Eduardo Martín-Martínez from the University of Waterloo in Canada. From a distant observer’s perspective, time appears to slow down significantly near the black hole’s edge, causing infalling matter to appear frozen in time and never crossing the event horizon. This results in emitted light being redshifted to longer wavelengths and eventually becoming invisible.





Contrastingly, from the viewpoint of the infalling material itself, time progresses normally, and the matter eventually crosses the event horizon after a finite amount of time, moving towards the black hole’s singularity at the center. According to Martín-Martínez, if the distant observer were to approach the horizon themselves, they would witness matter crossing the horizon at a finite time, including their own crossing at a finite proper time.





Exploring Human Speed Limits





In an exploration of human speed limits in sports, it was noted that elite athletes aiming to reach projected maximum speeds in running or swimming would require flawless technique, as reported by Erin Garcia de Jesús. The discussion delved into the impact of compression and buoyancy on performance, particularly referencing the now-banned swimsuit line from Speedo that led to a surge in records in the 50-meter freestyle event.

See also  Mysterious Blue Tree Rings Can Reveal History's Cruelest Summers : ScienceAlert




Addressing a reader’s query about the contradictory effects of compression and buoyancy, it was clarified that the compression of the swimsuits streamlined the swimmers’ bodies, reducing drag, while simultaneously increasing buoyancy by trapping air around their bodies. These dual effects worked in parallel to enhance the athletes’ performance, showcasing the intricate balance between compression and buoyancy in optimizing speed and efficiency in sports.



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