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Most of my other scopes have FT focusers, but the single speed Tak focusers in my Sky 90 and Mewlon work so well that I never saw the need to replace them with FT focusers. I have to say I was pretty impressed with the single speed focused on my TOA-130NS. It’s nothing fancy...
This can affect(影响) how the brain deals with how we see.stay balanced and move around. 4.Scientists have also found that astronauts may get used to this change after going on more spaceflights. But they still need to do more research. A. And they work hard to make their dream come...
It's like saying, why do we need to travel the world when we can do it via VR and just sit on a sofa? (I love VR, but being actually there is different) I took it as such. What's wrong with taking a moment to justify "why we fight"?!
We discuss why there is a need to develop computational education in the social sciences and why it is a challenge. We consider two perspectives. In the students' perspective, there is the problem of mathematical anxiety and gender inequalities in STEM education. In the academic teachers' ...
An illustration of a suited Artemis astronaut looking out of a moon lander hatch across the lunar surface. NASA Fingers are crossed that a launch goes as planned later this year, but we still don't know whether it will. Though what we do know is that NASA's moon expediti...
How many times does the moon spin on its own axis per one rotation around the earth? Why are we not thrown off the surface of Earth by centrifugal force? Why do you suppose that a space shuttle is sent into orbit by firing it in an easterly direction (the direction in which Earth spi...
I do suspect that most users of tablets are affecting their night vision. This what I do: - Red film screen. Normal screens have white light leakage. The Red film blocks all but red. This enhances the contrast allowing less light to be used as well as protecting your night vision. Even...
“This is a private mission. You need something to say that’s different and exciting about it,” said Dr. Christopher Combs, associate dean of research at the Klesse College of Engineering and Integrated Design at the University of Texas at San Antonio. “It’s interesting that nobody’s ...
“Butch and Suni are fully trained,” Weigel added. “They’re capable and current with EVA (spacewalks), with robotics, with all the things we need them to do.” During recent updates about ISS activities from NASA, the space agency said Williams, Wilmore and th...