The record for record sales is held by Michael Jackson's album "Thriller," which has sold an estimated 66 million copies worldwide. This makes it the best-selling album of all time. "Thriller" was released in 1982 and its success was fueled by hit singles such as "Billie Jean" and "Beat It," as well as Jackson's groundbreaking music videos. The album's continued popularity and influence have solidified its place in music history. **

An Olympic record is not considered a world record because it is specific to the Olympic Games and the conditions under which the event is held. World records, on the other hand, are recognized as the best performance ever achieved in a particular event, regardless of the competition or location. Olympic records are only valid for the duration of the specific Olympic Games, while world records are recognized and maintained by international governing bodies such as the International Association of Athletics Federations (IAAF) or the International Swimming Federation (FINA). **

Tesla's anti-gravity technology refers to the concept of using electromagnetic fields to counteract the effects of gravity on an object. This technology is based on the idea that by creating a powerful electromagnetic field around an object, it can be lifted or moved without the need for traditional propulsion methods. While there is speculation and theories surrounding Tesla's work on anti-gravity technology, there is no concrete evidence that he successfully developed a working anti-gravity device. **

No, Russia's space exploration is not at an end. While Russia has faced some challenges in its space program, such as budget constraints and technical issues, it continues to be an active player in space exploration. Russia has a long history of achievements in space, including being the first country to launch a satellite and send a human into space. The country is also involved in international collaborations, such as the International Space Station, and has plans for future missions to the moon and Mars. Therefore, Russia's space exploration is far from over. **

A record player must have a built-in preamp or the ability to connect to an external preamp in order to record vinyl. It should also have a USB output or a line output to connect to a computer or recording device. Additionally, the record player should have a tonearm with a stylus to play the vinyl and a platter to support the record. Some record players also have the ability to adjust the tracking force and anti-skate settings for optimal recording quality. **

To record a video and simultaneously record the sound, you can use a smartphone or a digital camera with a built-in microphone. Simply open the camera app on your device and switch to video mode. Make sure the microphone is enabled and positioned to capture the sound you want to record. Then, start recording the video while ensuring that the microphone is picking up the audio. After recording, you can play back the video to check if the sound was captured properly. If you need higher quality audio, you can also use an external microphone that can be connected to your device. **

One popular PC game about space exploration is "Elite Dangerous." In this game, players can explore a realistic 1:1 scale open-world galaxy, trade goods, mine resources, engage in combat, and more. The game offers a vast and immersive experience for players interested in space exploration and simulation. "Elite Dangerous" has received positive reviews for its attention to detail and expansive gameplay options. **

Space probes are sent on exploration missions using powerful rockets that launch them into space. These rockets provide the necessary thrust to escape Earth's gravity and propel the probe towards its destination. Once in space, the probe's trajectory is carefully calculated to ensure it reaches its target planet or celestial body. The probe is equipped with various instruments and communication systems to collect data and send it back to Earth. **