Today’s Solutions: December 18, 2025

Science

From mathematics and AI to medicine and psychology, The Optimist Daily features the latest news on discoveries, technological advances, and breakthroughs in the world of science. Our Science section is here to engage and enlighten you.

The Hoover Dam 2.0: a $3 billi

The Hoover Dam 2.0: a $3 billion plan to turn the dam into a giant battery

In the 1930s, the Hoover Dam transformed the American West through powering millions of homes and businesses. Now, the dam may get a second life as a giant battery to store excess solar and wind energy. The plan is to equip the dam with a $3 billion pipeline and a pump station powered by solar and Read More...

Three brain science–backed t

Three brain science–backed techniques that help you learn faster

Through research, we are understanding better and better how we learn. Some of these discoveries help to make learning more efficient and more fun. Here are three very helpful tips to master the art of Read More...

Tesla only: an analysis of the

Tesla only: an analysis of the emerging supercharger network

The challenge to set up ordinary charging stations for electric cars is already big. Tesla offers superchargers to enable electric car owners to quickly recharge their cars while they continue their journeys. Building a network of superchargers is an even bigger (financial) challenge. So far, Read More...

This island nation plans to st

This island nation plans to stop buying diesel and go 100 percent solar next year

Most pristine paradise islands rely on dirty diesel fuel to supply almost all of their power. The tiny Pacific island nation of Palau has now started a fast transition to clean energy while providing an example that other islands can follow. The energy transformation in Palau is driven by Read More...

… and Las Vegas plans one-bi

… and Las Vegas plans one-billion-dollar solar investment to power the strip

A new 1-billion-dollar solar project near Las Vegas aims to help light up the Strip and other parts of Nevada, California, and Arizona as early as 2020. The proposed project on almost 44,000 acres would be one of the largest in the United Read More...

The Netherlands plans an offsh

The Netherlands plans an offshore wind farm that can power a city of 20 million

The potential for offshore wind farms is massive. Here’s the latest example: The national electric company of the Netherlands is now planning a wind farm that will produce 30 gigawatts, enough to power a city of 20 million people. The size of the Dutch project is almost 50 times bigger than the Read More...

UK and Germany keep setting ne

UK and Germany keep setting new clean-energy records

The British grid has not burned any coal for 1,000 hours so far, this year. In Germany this year, coal generated 35 percent of the country’s electricity but, for the first time, renewable resources generated more energy in the same period: 36.5 Read More...

Why you should leave a sugar s

Why you should leave a sugar solution in your garden today

Bees play a vital role in our ecosystems, but unfortunately bee populations are dwindling. There is, however, a simple yet odd way we can help save bees, according to Sir David Attenborough. In the summer months, bees can become extremely tired from all their work, so much so that they don’t have Read More...

Scientists are racing to make

Scientists are racing to make oil-free plastics

Most of the world’s plastics are made using oil, which releases carbon emissions when the plastic is incinerated after use. Now scientists are out to make plastics without oil by using materials like straw, wood chips and food waste to produce bioplastics. One particular approach includes Read More...

How scientists think they can

How scientists think they can save the northern white rhino from extinction

The last male northern white rhinoceros died in 2014, meaning that the species is set to go extinct. But rather than watching the species die before their eyes, biologists have been hard at work trying to save the northern white rhino. They believe via artificial insemination, the abundant southern Read More...