Prepping the Perseverance Power Source -

Prepping the Perseverance Power Source

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  1. Would have liked more of the history of producing Pu238, how difficult it is, and how the US nearly ran out

  2. not going to lie, the solar panels were much cooler.

  3. All done by “Nassau experts”. Who knew the Bahamas was such a leader in interplanetary space research.

  4. "Not to be used for providing heating during emergency rover excursions."

  5. Through exploitation of the natural decay of Blutonium-238, this elegantly simple power generator can provide consistent, stable power for decades. Not to be used for providing heating during emergency rover excursions.

  6. 0:29 says it all, really. So clear and science-y, this video.

  7. What's the principle behind the power generation? Peltier?

  8. I graduated on the the Faculty of Physics with this topic, Thermoelectric Generators. They are used to supply satellites with electricity. There is a nuclear source in the center, and the heat gradient on the p-n elements creates electricity. The white fins you see are used for cooling, so that the temperature gradient is as large as possible.

  9. Ok now they need to work on downsizing it and fit it into my Xbox controller.

  10. nice tinkly music track nice girly PR reader,,some nitty gritt eye,,will the dozen cameras costing 500 mil provide at least far and near detail as the U2 flights over moskBa CCCP? they could read pravda headlines from 80 k feet

  11. How do they biologically decontaminate the unit before flight? Nothing in the video about that.

  12. Can I order one of these for my home? Thanks.

  13. I'd like to try to build an RTG, but I went down to at least half a dozen corner drug stores, but none of them had any plutonium. What's up with that?

  14. Geez! And here I was thinking you just grabbed a big chunk of plutonium, stuck some Peltier devices to it, and then glued some heatsinks to the Peltiers.

  15. I cluld not have watched a more boring video about science
    There was allmost nothing new said about rtg that we allready know

  16. Back in the innocent days of the 1950's we were told that in the future we'd have a car with one of these in it, well 8 of them.
    The nuclear 8 sedan! Never need refueling. What styling!
    Now they debut (ugly) on Mars but we have to wait for the cars as well for the flying kind.

  17. when can we get RTG phone batteries? I want 100 year battery life

  18. The Americans put a nuclear time bomb on Mars!

  19. Seriously RTGs are underrated, going way back to the Apollo program and arguably even before that. Amazing old tech, yet like a generator built like a tank. I hope they made it modular, so a future team or rover can use the RTG after the rover has ceased service.

  20. Just remember this video when the anti-space and mars goobers scoff that the solar panels would be too dusty to continue to work, so NASA is therefore lying.

  21. kids back in the 50s : Yay, we could build an Abomb out of it!
    Kids today(if even interested): can you build a power bank out of it so that I can spend more time with stupid apps on my smartphone ?

  22. 1:13 That's wrong. You didn't see any graphite. YOU D I D A N N T!!!!!

  23. Those pellets of Pu-238 look so tempting, want to touch

  24. Wait, they put the radioactive isotopes into… graphite? I'm not a nuclear engineer, but I seem to recall an incident involving nuclear stuff and graphite going… badly.

  25. Just think about how much tax money we'd all save if these bozos weren't screwing around with valueless stuff like this…!

  26. Interesting that you chose not to briefly mention how it works, as in, through the Seebeck effect.

  27. This is awsume fantastic American technology at its finest.
    A hover craft lowers the rover ,let’s it go explore the planet.
    By the time it needs refueling,we will already be there. 60 years or so.

  28. Pu-238 is our friend ! Well, far far away…

  29. There are so many interesting questions around RTGs. What is the process by which the heat energy is converted to electricity, and how much does it produce? How much residual heat does it generate, and how is it expunged on transit to mars? How much radiation escapes the cladding, and how do they prevent it from impacting the sensitive sensors on the vehicle? If the rocket fails, what kind of mess will it make? Will the cladding degrade on mars over time? If it does, will the radiation exposure be significantly higher than normal mars surface background radiation? How long will the radioisotopes and its decay products be toxic to humans?

  30. Now I finally know what Idaho is famous for

  31. What happens to me if this explodes into our atmosphere . Who cares I am an acceptable loss


  33. Just curious, but how much power does this unit output? Voltage and watts?

  34. Produced by the DOE, each GPHS contains four pellets of plutonium dioxide fuel, each clad in

    iridium metal and several layers of graphite and carbon-fiber material for protection during

    potential accident conditions. Each MMRTG uses eight GPHSs. An MMRTG is required to

    provide 107 We at 28 volts in a 270 K (–3°C) thermal sink (which approximates a hot day on

    Mars) at beginning of mission (BOM—BOM is defined as shortly after launch), when the

    thermal inventory of 250 Wt per GPHS at the time of fueling;

  35. 1:53 "A large machine vibrates the RTG in three dimensions, to ensure it can take a lickin' and keep on tickin'."

  36. Amazing. It's a glowing piece of metal. Self heated metal.

  37. Looking forward to seeing what you’re currently working on. This stuff is just for show.

  38. Give me 10 so I can microwave this pizza slice.

  39. Where did they get all of that nanocarbon alloy? that stuff is hard to get!

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