![David Ladner on Twitter: "My son Isaac's first trigonometry lesson as we calculated how far to push the heads of his Pinewood Derby axles to make a 2 degree bend. https://t.co/mFFj7axyWc" / David Ladner on Twitter: "My son Isaac's first trigonometry lesson as we calculated how far to push the heads of his Pinewood Derby axles to make a 2 degree bend. https://t.co/mFFj7axyWc" /](https://pbs.twimg.com/media/D23uutXWsAEiBQx.jpg:large)
David Ladner on Twitter: "My son Isaac's first trigonometry lesson as we calculated how far to push the heads of his Pinewood Derby axles to make a 2 degree bend. https://t.co/mFFj7axyWc" /
![Star Wars Series set of 2 recruitment posters. | The old republic, Star wars episode iv, Star wars poster Star Wars Series set of 2 recruitment posters. | The old republic, Star wars episode iv, Star wars poster](https://i.pinimg.com/736x/d3/02/93/d30293d0d286f1029cb26358e0c48f1f--poster-trigonometry.jpg)
Star Wars Series set of 2 recruitment posters. | The old republic, Star wars episode iv, Star wars poster
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