AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA! | AskScience Blog

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Monday, October 7, 2019

AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA!

AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA!


AskScience AMA Series: We're Rob Dagle, Bob Wegeng, and Richard Zheng - experts in extracting low carbon hydrogen from natural gas from the Pacific Northwest National Laboratory and STARS, LLC. We're here to answer your questions. AUA!

Posted: 07 Oct 2019 04:00 AM PDT

Hi Reddit, tomorrow is National Hydrogen and Fuel Cell Day, and we hope you'll have a gas! Hydrogen and fuel cells are the perfect partners for clean, fuel-efficient transportation and a secure energy future. Here at Pacific Northwest National Laboratory (PNNL), we have expertise in creating low carbon hydrogen from natural gas, and we have two projects we want to discuss with you. The first is Solar Thermochemical Advanced Reactor System-or STARS, a technology that converts a record-setting 70 percent of solar energy into chemical energy, such as hydrogen. STARS uses thermal energy from the sun to break down natural gas and water into hydrogen and carbon dioxide in a steam methane reforming process. PNNL licensed STARS to a spin-off company, STARS, LLC, who is working with Southern California Gas Company to implement the technology. Read about STARS here: https://www.greencarcongress.com/2018/05/20181518-stars.html.

The second project uses a low-emission process to convert natural gas to hydrogen, carbon fiber, and carbon nanotubes. The process creates hydrogen that can be used in fuel cell vehicles and industrial processes, as well as carbon fiber that can be used in applications from medical devices and aerospace structures to building products. The goal of the project is to make hydrogen-fueled cars and trucks cost-competitive with conventional gasoline and diesel vehicles. In addition, this technology would virtually eliminate CO2 emissions from the methane-to-hydrogen process. The technology development and commercialization team includes PNNL; West Virginia University; Southern California Gas Company; and C4-MCP, a Santa Monica-based start-up company. Read more about project here: https://www.greencarcongress.com/2018/01/20180105-socalgas.html.

We invite you to look over the information in these links, and we will be back at 11-1 PDT (2-4 ET, UT) to answer your questions.

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If I shine a white LED light through a prism, would I see a spectrum, or would I see a red line, a green line, and a blue line?

Posted: 06 Oct 2019 08:46 AM PDT

I've been thinking about this since I got some of those little window hangers that put shine little rainbows into your room by refracting dispersing(?) sunlight, but I don't have a white LED light bright enough to actually see anything if I shine it through.

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How do electronics measure battery percentage?

Posted: 06 Oct 2019 05:24 PM PDT

Why do only a few languages, mostly in southern Africa, have clicking sounds? Why don't more languages have them?

Posted: 07 Oct 2019 06:56 AM PDT

Today's Nobel prize in Physiology or Medicine is on the role of oxygen in cells. The description says the research is important in aiding injuries and understanding cancer. Can someone explain it in a little more detail? Is it also relevant to aerobic exercise?

Posted: 07 Oct 2019 05:36 AM PDT

If a grenade exploded in space, what would it look like?

Posted: 06 Oct 2019 02:08 PM PDT

What is the maximum theoretical speed of Fibre optic?

Posted: 07 Oct 2019 06:49 AM PDT

Most ISPs have a maximum speed of 1Gbit. I would like to know what the maximum theoretical speed of a fibre optic cable is. I saw different explanations on quora but they lacked sources. On wiki i found the max speed we have accomplished, i am also wondering why we currently have only 1Gbit and not more. What are main limitations currently?

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What is it about our place in the galaxy which makes it so conducive for the existence of life? What about our place in the greater clusters and beyond?

Posted: 06 Oct 2019 10:06 PM PDT

How come estrogen can be taken orally, but testosterone must be injected?

Posted: 06 Oct 2019 05:15 PM PDT

Can Time Crystals accumulate Paizoelectricity in response to mechanical stress like regular crystals?

Posted: 07 Oct 2019 07:30 AM PDT

Is falling "forever" the same as moving in zero gravity?

Posted: 06 Oct 2019 07:58 PM PDT

Hi All, I am curious...
Is there any difference or similarities between moving in zero gravity (space) and falling forever?

I appreciate that the term "falling" implies that you are falling towards a source of gravity, which in itself means the equation for falling and the effects of gravity need to be carried into perpetuity, but I assume an equation exists (disclaimer; I am not a mathematician.)?!

So my basic train of thought is, if you were falling into, lets say a hole which in theory had no bottom would you:

  1. Experience the same sensation as moving in zero gravity?
    1.a. If not, why?
    1.b. Would you and your body eventually adjust to the sensation of falling and thus the sensation would be similar to moving in zero gravity?
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How can a supermassive black hole explode?

Posted: 07 Oct 2019 03:25 AM PDT

I read an article that talks about the supermassive black hole at the center of our galaxy exploding relatively recently . How does a black hole explode? I don't pretend to know much in this area but I would think the energy needed for anything to escape a black hole would be impossible to reach, thus negating any "explosion" anything from escaping the event horizon. The article says it was "like a lighthouse for 200k light-years into deep space." How?

https://www.independent.co.uk/news/science/supermassive-black-hole-milky-way-explosion-sagittarius-a-seyfert-flare-a9145136.html

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Is it possible that exposing deep-sea creatures to bright LED lights, like we do in wildlife documentaries, could be harmful to them or to their biomes?

Posted: 06 Oct 2019 02:10 PM PDT

What Causes The Stimulation That Opens Na+ Channels?

Posted: 06 Oct 2019 03:44 PM PDT

In my physiology books, it states, "When a cell is stimulated, depolarisation starts to occure due to some of its voltage-gated Na+ channels being open."

I think I understand that the channels are opened because an electrical impulse reaches a certain voltage to open the gate (though, wouldn't this change the electrical gradient?). But also, where does that stimulus come from? Where does it originate? And, again, wouldn't this change the very electrical gradient that would cause the Na to move into the cells in the first place? Or does it merely decrease the gradient, but not enough to stop rapid flow?

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What does undefined mean in the time dilation equation and why do i get it at speed slower than the speed of light?

Posted: 06 Oct 2019 06:29 PM PDT

I was putting numbers into the equation for time dilation and when I put in .99999999999999999 the speed of light I got undefined. I also get undefined at the speed of light. Does undefined mean that time stops and if so does that mean that time stops before u even reach the speed of light? I was using the desmos science calculator online and put in 10/(1-(. 17 9s)squared) to the power of 1/2

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It's said that some lobotomies, such as Rosemary Kennedy's, were performed on awake patients under local anaesthetic. What would a person have sensed or felt as a metal instrument was sweeping through their head?

Posted: 06 Oct 2019 12:44 PM PDT

How does the refractive index of different animals' eyes compare?

Posted: 06 Oct 2019 12:39 PM PDT

Do aquatic animals have lenses in their eyes with a higher index of refraction for seeing in water compared to animals that live in air?

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How do trees know it's time to prepare for winter?

Posted: 06 Oct 2019 12:12 PM PDT

While strolling across a yellowish-orangish-reddish park recently, I was wondering how do the trees "know" it's Fall already and it is high time to drop the leaves and prepare for winter? Is it simply connected with the temperature or is the mechanism behind that much more complex?

submitted by /u/bartekm3
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Why isn't the weather visibly changing all the time on Jupiter like it is on Earth? We could never have a great red spot here because it wouldn't last that long, but on Jupiter a storm can last hundreds of years?

Posted: 06 Oct 2019 04:10 AM PDT

Can plants get the bends?

Posted: 06 Oct 2019 12:45 PM PDT

AFAIK, people and animals get the bends when pressure drops because gases are coming out of the cell. Plants have cell walls that might be able to hold gases better, so would they be better able to cope with several atm pressure swings?

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Why is there potassium chloride in Doritos?

Posted: 06 Oct 2019 06:09 AM PDT

So I was eating Doritos the other day and I looked on the ingredients at the back and there was potassium chloride. That is used in some of America's execution lethal injections (I'm British but as far as I know that's the case). So, why are they in my Doritos?

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