Today’s Solutions: April 15, 2026
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Drill Bits

Nano-drills that kill bacteria and are powered by light

The traditional approach to defeating infectious bacteria has been chemical and biological, using antibiotics to beat some life-threatening microorganisms. Evolution is relentless, however, and we’re seeing more and more bacteria develop immunities to antibiotics quicker than we can develop new Read More...

German neighborhood

Germany makes renewable energy cheaper for households and businesses

Good news for German consumers shifting to renewable energy—they will no longer have to pay the renewables surcharge on their power bills as of July 1st, 2022.  The renewables surcharge was a necessary action that helped fund the country’s shift to renewable power over the past two decades. Read More...

Old-growth forests

US moves to protect old-growth forests

In the fight against climate change, some of our best assets are ones that we’ve had the longest time and cost nothing. They are big, green, grand, and have been here longer than the country itself. They are trees, and they are “our planet’s lungs,” which is how US President Joe Biden put Read More...

Ukrainian architects build mod

Ukrainian architects build modular shelters for refugees

Since Russia’s invasion, more than 6.5 million internally displaced people in Ukraine have fled their homes to find safety. Many of them are currently crowded in large spaces like school gyms or bomb shelters, with bare amenities available. In a bid to properly accommodate these refugees, a team Read More...

How you feel, microbiome

How your microbiome can affect your mood

Food can convey such an array of emotions. People can express love to their partners with their cooking. An exquisite and rare dish could make a dreary vacation totally worth it. A healthy meal can perk you up, and fast food can, ironically, make you feel sluggish. Food can make us feel so many Read More...

Buying an electric car

Want to buy an EV? Make a plan first

As you can probably tell by now, The Optimist Daily is a big fan of electric vehicles. EV’s offer a practical way to lower our personal carbon emissions and hold promise for additional benefits in the near future, such as powering our homes in an emergency. It also feels like EV's have finally Read More...

The design of the underwater autonomous drone Seasam.

Seasam drone improves underwater research and documentation

Humans have invented various autonomous underwater drones for scientific purposes and more. Some examples include the AutonomousRiver Cleaner (ARC) that uses bubbles and AI to clear plastic from rivers, or MERMAIDs which deep-sea dive to explore the ocean floor. There’s now a new drone in town Read More...