Enjoy our science quiz on biology and physics, from the livestream Adventures Abroad.
|Question 1||Krill are very vulnerable to ocean acidification caused by climate change, which endangers the whole marine food chain.||True or False||False. Nicole’s experiments suggest krill have surprising resilience to more acidic water. So, not VERY vulnerable – some people have called them the cockroaches of the sea. But hey, let’s not push it too far!|
|Question 2||Krill’s closest relatives are||a. Prawns
c. Blue whales
d. 30 other species of Krill
|30 other species of krill. They are in their own Order Euphausiacea. They are in the same Class as crustaceans, so kind of cousins of prawns.|
|Question 3||Places krill are found||a. Antarctica
d. Pacific ocean
f. Lake Burley Griffin
|All but Lake Burley Griffin. They’re one of the most widespread species.|
|Question 4||Fusion fuel tritium (plus deuterium) carries more energy per gram than petrol by a factor of||a. 3
e. 30 million
|30 million. Actually Bert’s wrong, Antimatter has a higher energy density than tritium, by a factor of 300.
Fusion fuel has quadruple the energy density of uranium in fast breeder reactors https://en.wikipedia.org/wiki/Energy_density_Extended_Reference_Table
|Question 5||The temperature of the core of the sun is 10 million degrees. ITER’s core will be||a. 1,000 degrees
b. 100,000 degrees
c. 10 million degrees
d. 100 million degrees
e. 1 billion degrees
|100 million degrees. Yep, ten times hotter than the sun. Put enough energy into a small enough quantity of fuel, it’s possible to reach these temperatures
|Question 6||The sun burns tritium||True or False||False: the sun burns hydrogen, which is much less energy dense than tritium. ITER will be a much more efficient fusion reactor.|
|Question 7||Gravitational Waves are the first proof ever of Einstein’s Theory of General Relativity||True or False||False. It’s used regularly for satellite positioning, for example – GPS would not work without the theory. This is the first proof of it in a high-gravity situation. Like REALLY high gravity – much higher than falling into the sun, for example.|
|Question 8||LIGO (Laser Interferometer Gravitational-Wave Observatory) ran for 50 years before making the first detection.||True or False||False. LIGO Mark 1 first searched for gravitational waves in 2002, although the scientists mostly believed (correctly) it was not sensitive enough to make a detection. After significant upgrades Advanced LIGO was opened 2015 and detected a black hole collision immediately. (Technically, they were still testing!)|
|Question 9||In the first collision of two neutrons stars, observed by LIGO 3 years ago, approximately how much gold was created?||a. 1 tonne
b. 100 tonnes
c. 1 billion tonnes
d. The mass of the earth (10^24 kg)
e. None, gold is created by Clive Palmier.
|Mass of earth.|
|Question 10||What is the scientific significance of the following numbers, (chosen by Dramatis Scientificae for their Patreon tiers).||a. 3.14
|Answers at Patreon.com/dramsci|
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