Hybrid rocket | Wikipedia audio article
Channel: wikipedia tts
Date: 17/05/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Hybrid-propellant_rocket


00:01:25 1 History
00:08:15 2 Basic concepts
00:09:24 3 Combustion
00:11:07 4 Properties
00:11:27 4.1 Advantages compared with liquid rockets
00:13:45 4.2 Advantages compared with solid rockets
00:15:09 4.3 Disadvantages of hybrid rockets
00:17:47 5 Fuel
00:17:56 5.1 Common fuel choices
00:19:03 5.2 Grain manufacturing methods
00:19:13 5.2.1 Cast
00:20:02 5.2.2 Additive manufacturing
00:20:57 6 Oxidizer
00:21:07 6.1 Common oxidizer choices
00:22:14 7 Hybrid safety
00:24:21 8 Organizations working on hybrids
00:24:32 8.1 Commercial companies
00:29:13 8.2 Universities
00:38:28 8.3 High power rocketry
00:39:21 9 In popular culture
00:41:10 10 See also



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: 0.9594919204437222
Voice name: en-US-Wavenet-A


"I cannot teach anybody anything, I can only make them think."
- Socrates


SUMMARY
=======
A hybrid-propellant rocket is a rocket with a rocket motor that uses rocket propellants in two different phases: one solid and the other either gas or liquid. The hybrid rocket concept can be traced back at least 75 years.Hybrid rockets avoid some of the disadvantages of solid rockets like the dangers of propellant handling, while also avoiding some disadvantages of liquid rockets like their mechanical complexity. Because it is difficult for the fuel and oxidizer to be mixed intimately (being different states of matter), hybrid rockets tend to fail more benignly than liquids or solids. Like liquid rocket engines, hybrid rocket motors can be shut down easily and the thrust is throttleable. The theoretical specific impulse (
  
    
      
        
          I
          
            s
            p
          
        
      
    
    {\displaystyle I_{sp}}
  ) performance of hybrids is generally higher than solid motors and lower than liquid engines. 
  
    
      
        
          I
          
            s
            p
          
        
      
    
    {\displaystyle I_{sp}}
   as high as 400s has been measured in a hybrid rocket using metalized fuels. Hybrid systems are more complex than solid ones, but they avoid significant hazards of manufacturing, shipping and handling solid rocket motors by storing the oxidizer and the fuel separately.