Guestbook

Alonzousept

17 Apr 2025 - 03:16 pm

Space, time: The continual question
If time moves differently on the peaks of mountains than the shores of the ocean, you can imagine that things get even more bizarre the farther away from Earth you travel.
kra30cc
To add more complication: Time also passes slower the faster a person or spacecraft is moving, according to Einstein’s theory of special relativity.

Astronauts on the International Space Station, for example, are lucky, said Dr. Bijunath Patla, a theoretical physicist with the US National Institute of Standards and Technology, in a phone interview. Though the space station orbits about 200 miles (322 kilometers) above Earth’s surface, it also travels at high speeds — looping the planet 16 times per day — so the effects of relativity somewhat cancel each other out, Patla said. For that reason, astronauts on the orbiting laboratory can easily use Earth time to stay on schedule.
https://kra30c.cc
кракен ссылка
For other missions — it’s not so simple.

Fortunately, scientists already have decades of experience contending with the complexities.

Spacecraft, for example, are equipped with their own clocks called oscillators, Gramling said.

“They maintain their own time,” Gramling said. “And most of our operations for spacecraft — even spacecraft that are all the way out at Pluto, or the Kuiper Belt, like New Horizons — (rely on) ground stations that are back on Earth. So everything they’re doing has to correlate with UTC.”
But those spacecraft also rely on their own kept time, Gramling said. Vehicles exploring deep into the solar system, for example, have to know — based on their own time scale — when they are approaching a planet in case the spacecraft needs to use that planetary body for navigational purposes, she added.

For 50 years, scientists have also been able to observe atomic clocks that are tucked aboard GPS satellites, which orbit Earth about 12,550 miles (20,200 kilometers) away — or about one-nineteenth the distance between our planet and the moon.

Studying those clocks has given scientists a great starting point to begin extrapolating further as they set out to establish a new time scale for the moon, Patla said.

“We can easily compare (GPS) clocks to clocks on the ground,” Patla said, adding that scientists have found a way to gently slow GPS clocks down, making them tick more in-line with Earth-bound clocks. “Obviously, it’s not as easy as it sounds, but it’s easier than making a mess.”

Donaldrar

17 Apr 2025 - 01:18 pm

darknet drug market darkmarket

Pingnal

17 Apr 2025 - 01:06 pm

darkmarket url dark market list

Michaelcoatt

17 Apr 2025 - 12:45 pm

Мы стремимся сделать процесс ремонта максимально быстрым и удобным для клиентов. Все работы выполняются с использованием оригинальных запчастей или проверенных аналогов, в зависимости от вашего выбора.
https://iphone-remont.by/remont-iphone/16/zamena-polifonicheskogo-dinamikaЗамена динамика айфона 16 прошла быстро и цена Минск.
Наша команда готова помочь вам решить любые технические проблемы, связанные с iPhone, iPad, MacBook и другими устройствами. Мы гарантируем качество выполненных работ и предоставляем гарантию на все виды услуг.

Важно: i-Guru не является авторизованным сервисным центром Apple и не имеет прямых связей с компанией Apple Inc. Мы предоставляем независимые услуги по ремонту устройств.

Dondonzed

17 Apr 2025 - 12:24 pm

dark markets 2025 dark markets

Josegc

17 Apr 2025 - 11:54 am

Якщо ви хочете відчути справжній заряд енергії, відвідайте Lambda Stage. Це місце для тих, хто любить музику з глибоким змістом.

Rabyforce

17 Apr 2025 - 11:47 am

dark market url dark market onion

Tolikbex

17 Apr 2025 - 11:14 am

dark web sites darknet links

Donaldrar

17 Apr 2025 - 10:46 am

darknet links darknet markets

Rabyforce

17 Apr 2025 - 09:13 am

best darknet markets dark web drug marketplace