<p>From molecules to microbes, Tiny Matters is a science podcast about the little things that have a big impact on our society, past and present. Former scientists Sam Jones and Deboki Chakravarti explore questions like, 'what is a memory?', 'will we ever cure HIV?' and 'are we alone in the universe?'. New episodes every Wednesday.</p>

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        &lt;p&gt;Before modern blood transfusions, doctors tried some odd alternatives, including cow&#039;s milk. In this episode, we trace the fascinating history of blood transfusions, from risky animal experiments and failed milk injections to the discovery of blood types and disease screening. You&#039;ll hear how blood transfusions became one of medicine&#039;s safest procedures, why researchers are still debating exactly when patients need them, and what innovations could make blood easier to store, transport, and use in emergency situations including the military battlefield.&lt;/p&gt;&lt;p&gt;Check out &lt;a href=&quot;https://www.dreamingagainstthemachine.com/&quot; rel=&quot;noopener noreferrer&quot; target=&quot;_blank&quot;&gt;Dreaming Against the Machine here&lt;/a&gt; or wherever you listen to podcasts!&lt;/p&gt;&lt;p&gt;A transcript and references for this episode can be found at &lt;a href=&quot;https://www.acs.org/pressroom/tiny-matters.html&quot; rel=&quot;noopener noreferrer&quot; target=&quot;_blank&quot;&gt;acs.org/tinymatters&lt;/a&gt;.&lt;/p&gt;&lt;p&gt;See Privacy Policy at &lt;a href=&quot;https://art19.com/privacy&quot; rel=&quot;noopener noreferrer&quot; target=&quot;_blank&quot;&gt;https://art19.com/privacy&lt;/a&gt; and California Privacy Notice at &lt;a href=&quot;https://art19.com/privacy#do-not-sell-my-info&quot; rel=&quot;noopener noreferrer&quot; target=&quot;_blank&quot;&gt;https://art19.com/privacy#do-not-sell-my-info&lt;/a&gt;.&lt;/p&gt;<br />
      

Tiny Matters

The Data