Tag: answers with joe

4 Megaprojects That Could Reverse Climate Change

Climate change is happening, and time is running out to turn it around. The IPCC’s most recent report gives us about 10 years to reverse our carbon emissions. We’re not going to get there by reducing our emissions alone. Here are 4 megaprojects that could actually save the planet.

Biomass Energy with Carbon Capture and Storage Biomass is the burning of biological material (usually plant matter) to generate energy. BECCS scrubs the CO2 out of the exhaust and sequesters it underground, thus taking CO2 out of the air via that plants and putting it into the ground.

Direct Air Capture With DAC, giant carbon scrubbers pull CO2 out of the air, after which the CO2 can be used to produce other items like fuel. Two companies that are leading in this field are Carbon Engineering and Climeworks. Stratospheric Aerosol Injection SAI is, basically, creating an artificial volcano. The Mount Pinatubo eruption of 1991 cooled the planet by half a degree for 18 months. By flying a fleet of SAI Lofters (SAILs) regularly into the upper atmosphere, we could spread particulates around the planet and cool the atmosphere.

Space Solar Shield By creating a giant solar shield at the L1 Lagrange point, we could block up to 2% of the sun’s rays, enough to alter the amount of heat getting trapped by the atmosphere.

How Atomic Bombs Help Catch Art Forgeries

Art forgery is a multi-million dollar business, one that museums and appraisers are constantly battling. But there is one technique they’ve found to foil forgers that’s near foolproof – and it involves atomic bombs.

Wolfgang Beltracchi is an artist who got his start as a forger of classic masters like Picasso, Van Gogh, and others. But he and those in his business found a foil in Peggy Guggenheim, Dr. Elena Basner, and a cadre of scientists that found a technique that searches for traces of the isotopes cesium-137 and strontium-90.

The reason is that these isotopes are only created by fission of Uranium 235, and between 1945 and 1963, 522 open-air atomic bomb blasts scattered these isotopes into the atmosphere, which then got into the soil, made its way into flax plants, which were used to create linseed oil, which was used as a binding agent in paint.

So if a painting shows traces of these isotopes in the paint, there is no way that it was created before 1945.

This technique has foiled hundreds of art forgers in the years since and has proven to be one of the most difficult challenges for future Wolfgang Baltracchis.

The European Space Agency Sets Its Sights On Mercury

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The European Space Agency – or ESA – has been a major player in the commercial launch space for decades with their Ariane series of rockets. But they also have been racking up some impressive interplanetary missions, their latest one being the BepiColumbo mission to Mercury.

Here we break down the ESA, talk about some of their biggest victories, and where they want to go in the future.

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://www.answerswithjoe.com/introfest

Could We Clone Ourselves?

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Human cloning has been a hot topic since the first mammal, Dolly the sheep, was cloned in 1996. And while no human clones have been made – that we know of – the research into cloning is saving lives through stem cell therapy.