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Livestreams Archives - Answers With Joe

Category: Livestreams

Halloween Livestream: A Virtual Reading Of An Old Horror Script

Since we’re all kinda stuck in our homes this Halloween, I thought it might be fun to read an old horror script I wrote called, Lavender: A Ghost Story.

It’ll be a fun hangout with some actor, filmmaker, and YouTuber friends. Come join us!

Announcing IntroFest 2018

As a fun little end-of-year thing, I’m going to have you guys vote on your favorite intro sketch on this channel, which I’ll reveal in a mini-festival on December 27th!

Vote here: http://answerswithjoe.com/introfest

Goblin, The Hidden Planet Nine, Lurking In Outskirts Of Our Solar System?

There is a growing evidence that our solar system has another Planet Nine or Planet X that is orbiting the Sun at a great distance.

Astronomer Scott S. Sheppard of the Carnegie Institution for Science in Washington and his team explained the orbital details of the planet, which they have nicknamed Goblin, while officially it is designated in 2015 as TG387.

The team took three years to figure out the orbit of the Planet, which is interesting. Their findings have been published in the Astronomical Journal.

Distanced at about 7.4 billion miles from the sun, or about 2.5 times farther away than Pluto, the planet’s most distant end of its elliptical, 40,000-year orbit, is nearly 70 times farther from the sun than Pluto.

However, TG387 remains far beyond the pull of the gravitation of Jupiter, Saturn, Uranus and Neptune, and astronomers have now discovered several bodies with such distant orbits.




In 2016, Michael Brown and Konstantin Batygin of the California Institute of Technology, originally predicted about an unseen planet, bigger than Earth yet smaller than Neptune. And it was named Planet Nine.

Ann-Marie Madigan, an astronomer at the University of Colorado, has suggested that gravity from a massive ring of small worlds early in the solar system’s history could explain the distant orbits.

“This new object does look like it’s quite good for the Planet Nine theory,” Madigan said.

Dr. Brown, who is behind Pluto’s demotion as a dwarf planet, is currently leading the search for Planet Nine. “Mostly it’s just another piece that fits in the puzzle very nicely,” said Brown.

Unseen by any earth-based telescope, TG387 is extremely lucky to have been located. We think there are thousands of these, and most of them are too distant to detect,” said Sheppard.

The discovery of the new planet may now trigger conspiracy theorists to claim that it could be the Nibiru, a rogue planet lurking outside our solar system to enter any time to cause destruction.

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Pass it on: Popular Science

Renewable Energy Series: Solar Vs Wind

Legendary oilman T. Boone Pickens called the US the Saudi Arabia of wind and when you see maps like this, you understand why.

As the Earth spins toward the west, it slides underneath the air in the atmosphere, giving it from our perspective a generally eastward direction.

That easterly wind sweeps over the rocky mountains and then rushes back down across the Great Plains, creating one of the largest wind corridors in the world.

And in the last 10 years, investments in commercial wind energy have boomed across the United States. Economies of scale have started to kick in, causing the price of wind turbines to drop.

They also cost little to maintain and operate and help create energy independence for smaller communities and provide a revenue source for local ranchers who lease out the land to the energy companies.

And they’re more space-efficient. On the ground they take up very little space and those ranchers can still use the land below them for agriculture.

Plus it’s a large growth sector for jobs and currently employs over 100,000 people, expected to rise up to 600,000 in the next 30 years.

And there’s a reason I saved saved solar for last. Because there’s something different about solar from all other forms of energy, clean or dirty.

Photovoltaic solar panels, or PV panels, have no moving parts.

Every other energy source creates electricity by using heat or steam or water or wind to turn a turbine. Solar literally just collects the energy coming out of the sun and repurposes it.

When asked if he was interested in fusion power as a source of energy, Elon Musk famously said that we already have a massive fusion reactor in the sky just feeding us energy every day. All we have to do is collect it.

Now there are some negatives to solar power, let’s just get that out of the way…

First the obvious one, there’s no sun at night, so solar power is intermittent. But intermittent more like tidal energy than wind energy because we know the sun will be coming up every day.

And even in cloudy weather, it is producing something.

They take up a lot of land, unlike wind farms mentioned earlier, if you have a solar farm, you can’t use that for other things.

But, you can also use existing infrastructure like buildings and transport corridors.

The big hangups come in the construction of the solar panels because there are some hazardous materials used that need to be properly disposed of at the end of the panel’s life span.

And some PV panels require rare Elements like those found in cadmium telluride (CdTe) or copper iridium gallium selenide (CIGS), which is all the more reason to recycle the panels properly.

Luckily, 96% of a solar panel can be recycled. Unfortunately, the recycling infrastructure for solar panels is pretty small, but expected to grow tremendously in the next 30 years.

But the one that gets the solar haters the most worked up is that producing solar panels does generate greenhouse gasses. Specifically nitrogen trifluoride and sulfur hexafluoride. And yes, that sucks.

But the argument that we should stick with something like coal because PV panels create greenhouse gasses is frankly absurd.

Because with the solar panels, it’s a one-shot deal and then you’re getting clean, free energy for the next 20 or 30 years, while coal is constantly pumping out greenhouse gasses that whole time.

This debate was laid to rest by Wilfried Van Sark of Utrecht University in the Netherlands. In a paper for the trade Nature Communications, he and his team calculated the amount of greenhouse gas emissions created by PV panel production all the way back to 1975 to see how long it would take before they made back their debt.

I didn’t even mention the other type of solar energy, concentrated solar thermal plants.

Hydropower vs. Geothermal – Which Renewable Energy Is Best?

Hydroelectric is the use of moving water to turn turbines that generate electricity, usually through the building of dams or pump stations on rivers.

And hydroelectricity is the king of renewable energy, making up 70% of the renewable energy produced around the world. And for good reason.

They’re kind-of the perfect energy source. It’s stable, base-load energy that’s flexible. If you need more electricity, just release more water into the turbines.

They’re cheap to run and maintain once they’re built and they’re 95% efficient at generating energy, compared to 33% for coal and 15% for solar.

And of course they create no pollutants, consume no fuel, and the water never stops flowing.

The Three Gorges Dam in China is actually the largest energy plant of any kind in the world and generates just under a hundred terawatt hours per year all by itself.

So, hydro is kinda perfect. The problem is, it’s location-specific.

If you don’t live by a large river, you’re not going to be able to use it. Luckily, most cities were built near rivers, but not all rivers are large and powerful enough to make enough difference to justify the cost of building them.

Which is also a problem. While they produce free energy for decades and even centuries after they’re built, hydroelectric dams are huge engineering projects that cost tons of money up front.

(By the way, the whole ‘expensive at first but then free for decades’ thing is a common theme amongst renewable energies)

They also create reservoirs and lakes that flood a lot of land whose landowners may not want to give up.

There are some concerns about the disruption of fish habitats, but… that’s not at the top if my list of concerns.

So each hydroelectric plant is a birds nest of legal and construction challenges to overcome but even so, the number of hydropower plants are expected to double by 2050.

 

Another base load energy source is geothermal energy.

Geothermal uses the heat from natural geologic hotspots to turn turbines that generate electricity.

Iceland and the Philippines are major producers of geothermal power, which can be used in huge commercial plants to power entire cities or just pump the heat directly into homes for heating.

It’s a consistent flow of energy so it never runs out, but the efficiency isn’t great. Only an average of 12% efficiency.

Which really just means it will take longer for the investment to build it to pay off because once it’s turned on, it’s just free energy basically. And the efficiency is getting better, with newer plants getting over 20%.
https://www.geothermal-energy.org/pdf

Even in Iceland, which is covered in hotspots and has a very progressive attitude toward clean energy, it only accounts for 30% of their energy production.

So it’s not likely to become a major source of energy worldwide

And as if all that wasn’t enough of a bummer, it also turns out that geothermal can produce greenhouse gasses.

Geologic hotspots churn up all kinds of stuff from inside the Earth, stuff like sulfur dioxide and silica emissions, and heavy metals like mercury, arsenic and boron.

These can get in the reservoirs and eventually the water supply.

Oh, and by the way, one of the methods they use to open up geothermal wells is hydraulic fracking. Yeah. That hydraulic fracking.

Let’s drill down and inject extremely high pressure water and other chemicals… Right over a volcano.

 

What could go wrong?

Earthquakes. That’s what.

Just like fracking for natural gas has caused earthquakes in Oklahoma…

(zoom in)
Earthquakes. In Oklahoma.

A geothermal well that was drilled in Switzerland set off an earthquake that measured a 3.4 on the Richter scale.

(pained)
Geothermal… Why do you hurt me so?

I used to think geothermal was really cool. Used to.

So am I wrong about this? Do you have experience using geothermal, or working in hydro plants? Are my numbers garbage? Let me know in the comments

The next video in this series will focus on biomass energy and harnessing the motion of the ocean to make power.

The Fermi Paradox, Cyborgs, And Artificial Intelligence – My Interview With Isaac Arthur

In this week’s live stream, I’m going to share clips of my interview with Isaac Arthur, which you can find the full version on the Answers With Joe Podcast:
http://answerswithjoe.com/fermi-para…

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The Top 5 Places We Could Colonize In Our Solar System

The 5 best options for colonizing in our solar system are:

  • The moon
  • Mars
  • Europa
  • Titan
  • Venus

 

The moon

Gravity: 1/6 that of earth

Air pressure: none

Temperature: extreme (253 in sun, -253 in shade)

Why go – a place to launch to other places Orbiting at 2288 mph (3683 kph) – significant boost

Advantages: Instant communication with Earth Good place to learn how to colonize where Experts are available 24/7

Advantages: Lighter gravity means we could build bigger there
Advantages: could dome over craters to create housing
Advantages: water ice in some pole craters

One place we have talked a lot about is Mars

 

Mars

Gravity: Just over 1/3 (38%)

Air Pressure: .6% if Earth’s

Temperature: 70 in day (20C), -100 at night (-73C)

Why go: Most comfortable temperature-wise and gravity-wise, but pressure is still abysmal

Down-side: Thin atmosphere means not enough to support life but enough to make landings difficult.

Terraforming option – most potential for terraforming. Melting ice caps could pump CO2 into the air and thicken the atmosphere as well as warm the planet

 

Europa

Gravity: 13% of Earth’s

Air pressure: barely exists – mostly oxygen

Temperature: -260F -160C

This seems like a swing and a miss, but there’s something interesting under the surface of Europa

Tidal heating causes a sea of liquid water beneath the surface.
One of the best options for finding life in the solar system
Underwater habitats might be the answer.

Downside: radiation carried by Jupiter’s magnetic field would pose an issue

 

Titan

Gravity: 13% of Earth’s

Air pressure: 1.5x that of Earth

Temperature: -290F, -179C

Of all the places in the solar system, Titan’s air pressure is most like Earth’s You could just walk around on the surface without a suit, except for the fact that it’s so cold methane flows in rivers.

Could use the methane for fuel

But I promised something controversial, and here it is, my personal favorite option for colonizing another planet… Venus.

 

Venus

Gravity: 91% of Earth’s

Air Pressure: 100x that of Earth

Temperature: 872F, 467C

Now I know what you’re saying, you’re saying Joe, that only meets one of the three criteria, how can you possibly pick that as your number one?

Because those numbers are for the planet’s surface. Up in the clouds, it’s a different story.

Venus’ air pressure is insane. On the surface, it would crush you like a soda can. But about 50 kilometers up in the atmosphere, it’s about the same as here.

Which means that just like a ship can float on top of the water, we could build colonies that float on the upper atmosphere of Venus.

It would still be hot, but manageable.

And I know people will always say, but what if you fall? Or if you drop something, you’ll never get it back.

Well, I go back to the ship on the sea analogy. If you fall off the boat, you’re likely to drown. If you drop your phone over the side, you’ll never see it again. But we still have cruise ships carrying thousands of people and entire navies floating around out there.

Plus the communication time would be smaller than anywhere else.

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