Tell-tale (spacecraft) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-03-29

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Tell-tale_(spacecraft)





Listening is a more natural way of learning, when compared to reading. Written language only began at around 3200 BC, but spoken language has existed long ago.

Learning by listening is a great way to:
- increases imagination and understanding
- improves your listening skills
- improves your own spoken accent
- learn while on the move
- reduce eye strain

Now learn the vast amount of general knowledge available on Wikipedia through audio (audio article). You could even learn subconsciously by playing the audio while you are sleeping! If you are planning to listen a lot, you could try using a bone conduction headphone, or a standard speaker instead of an earphone.

Listen on Google Assistant through Extra Audio:
https://assistant.google.com/services/invoke/uid/0000001a130b3f91
Other Wikipedia audio articles at:
https://www.youtube.com/results?search_query=wikipedia+tts
Upload your own Wikipedia articles through:
https://github.com/nodef/wikipedia-tts
Speaking Rate: 0.9053206124705427
Voice name: en-GB-Wavenet-A


"I cannot teach anybody anything, I can only make them think."
- Socrates


SUMMARY
=======
In space systems a tell-tale is a single-bit status indicator that is included in telemetry or is used within the spacecraft's on-board software to signal conditions that must be tracked or acted upon, especially when the status changes. A tell-tale may continually change as the status it is tracking changes, or, it may change once upon change of status and then remain at that value until deliberately cleared. The latter type of tell-tale is known as a "sticky-bit" because its value "sticks", that is, remains constant, once it has been set.
The Phoenix spacecraft contains another type of tell-tale, developed by the University of Aarhus in Denmark, as part of its Meteorological Station. It is a small tube that is deflected by the martian wind. The science payload’s stereo camera recorded images of the tell-tale that are used to determine wind direction and speed.