The lesbian flag: versions, colors and meaning

Several lesbian flags have existed over the years. The one most people use today is the orange, white and pink striped flag, designed in 2018. Knowing the earlier versions helps explain why the community settled on it. The labrys flag (1999) Graphic designer Sean Campbell created the first widely known lesbian flag in 1999. It … Read more

What is the difference between a conglomerate and a sedimentary breccia?

Both rocks are made of large fragments, called clasts, more than 2 millimeters across (gravel size and larger), cemented together in a finer matrix. The main difference is the shape of the clasts: Why shape matters Rock fragments get rounded as they are transported. Tumbled by water along a river or by waves on a … Read more

What are seed oils, and are they bad for you?

“Seed oils” has become a buzzword on social media, often accompanied by claims that they are toxic. The reality is more nuanced. Here is what seed oils are and what the evidence says. What counts as a seed oil Seed oils are vegetable oils extracted from the seeds of plants. The ones most often discussed … Read more