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Videos

 
How Do Vaccines Work? Here's a Clear Explanation
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To understand how vaccines work, it helps to look first at how the immune system works. This short animation explains how vaccines enable the body to make the right sort of antibodies to fight a particular disease.

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Cas13: Cas9's Cool Detective Cousin
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This animation depicts how Cas13—a CRISPR-associated protein—may be adapted to detect human disease. This new diagnostic tool, called SHERLOCK, targets RNA (rather than DNA), and has the potential to transform research and global public health.

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Bacterial DNA Jiggling Motion Halted Before Cell Death
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Watch how the jiggling motion of bacterial DNA stops when a natural antimicrobial peptide permeates the E. coli membrane. This novel mechanism helps explain why bacteria develop resistance very slowly and may inform the design of new antimicrobial agents.

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How to Create a World Where No One Dies Waiting for a Transplant
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Scientists have engineered pigs that don't carry a virus which has stalled previous pig to human organ transplantation initiatives.

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The Tiny Creature that Secretly Powers the Planet
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Oceanographer Penny Chisholm tells the story of a tiny ocean creature you've probably never heard of: Prochlorococcus, the most abundant photosynthetic species on the planet. A marine microbe that has existed for millions of years, Prochlorococcus wasn't discovered until the mid-1980s -- but its ancient genetic code may hold clues to how we can reduce our dependence on fossil fuels.

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What Makes Kimchi So Delicious?
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It’s the fermented food most requested by you, the viewers! What makes kimchi sour and spicy, yet also surprisingly rich and buttery? This week on Reactions, it’s the chemistry of kimchi.

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Can I Still Eat This?
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Reactions gets into the chemistry/science of expired foods and how expiration dates are lying to us.

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See the Lytic Cycle in Action
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To reproduce, bacteriophage infect bacterial cells and hijack their cellular machinery before killing their host as shown in this animation.

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Watch Vaccinia Poxvirus Infect a Cell
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This video shows the movement of cells infected with vaccinia poxvirus.

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Top Science Stories of 2018
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We have seen some amazing scientific breakthroughs in 2018. Here is a selection of our favorites.

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