Low Emission Airplanes
From solar and hydrogen powered concept planes to better designed, more fuel-efficient standard aircrafts, the airline industry is slowly turning greener, says The Christian Science Monitor.
From solar and hydrogen powered concept planes to better designed, more fuel-efficient standard aircrafts, the airline industry is slowly turning greener, says The Christian Science Monitor. "Airplanemaker Boeing is developing a carbon-neutral jet fuel made from algae...On the far end of the innovation spectrum are zero-emission airplanes that use little or no fuel. The French company Lisa is building a prototype small plane, dubbed the Hy-Bird, that uses solar power (via photovoltaic cells on its elongated wings) and hydrogen fuel cells to fly with zero emissions – and nearly no engine noise."
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A growing body of research shows promising signs that the keto diet might be able to improve mental health.
- The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
- Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
- Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
The Harvard psychologist loves reading authors' rules for writing. Here are his own.
- Steven Pinker is many things: linguist, psychologist, optimist, Harvard professor, and author.
- When it comes to writing, he's a student and a teacher.
- Here's are his 13 rules for writing better, more simply, and more clearly.
Thinking your life is worthwhile is correlated with a variety of positive outcomes.
- A new study finds that adults who feel their lives are meaningful have better health and life outcomes.
- Adults who felt their lives were worthwhile tended to be more social and had healthier habits.
- The findings could be used to help improve the health of older adults.
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