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Physics with Nabla


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Physics with Nabla T-shirt

The upside down triangle you often see in physics is called nabla.  We often read it as “del”, because it looks like an upside down capital delta.

The symbol doesn’t usually show up in introductory physics classes until Maxwell’s Equations are introduced in Physics II during the unit on electromagnetic waves.

Physics majors, however, become very familiar with the symbol when they start to learn vector calculus.  Here it shows up in several important situations, including the gradient, the divergence, and the curl.

T-shirt Description

You’ve now found the staple t-shirt of your wardrobe. It’s made of 100% ring-spun cotton and is soft and comfy. The double stitching on the neckline and sleeves add more durability to what is sure to be a favorite!

  • Sport Grey is 90% ring-spun cotton, 10% polyester
  • Dark Heather is 65% polyester, 35% cotton
  • 4.5 oz/yd² (153 g/m²)
  • Shoulder-to-shoulder taping
  • Quarter-turned to avoid crease down the center
  • Blank product sourced from Bangladesh, Nicaragua, Honduras, Dominican Republic, Haiti or Guatemala

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

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