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Kepler Men’s premium heavyweight tee

Regular price €31,95 EUR
Regular price Sale price €31,95 EUR
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Johannes Kepler: Astronomer, Mathematician

Design Information

Johannes Kepler, 1571 to 1630.

Kepler was an astronomer and mathematician, and worked with Tycho Brahe.

Tycho Brahe and his daughter made all the observations of the planetary motions and Kepler did the analytical work.

Though laborious work examining the data, Kepler discover 3 basic laws of planetary motion.

  1. The planets move in ellipses, with the sun at one of the foci. That is, they do not move in true circles.

  2. A line between the planet and the sun sweeps out equal areas in equal times.
    This means the further away the planet is from the sun, the slower it moves.

  3. Presuming circular motion, the period of the motion, T² ∞ R³.
    That is, the period of the motion is proportional to (radius) ³/², so if the radius is double, then the period would increase by about 2.8 times.

The Kepler triangle is something of an oddity.

If you denoted the sides of a right angled triangle as √Φ and 1, and the hypotenuse Φ, then by Pythagoras Φ² = Φ + 1, and using the quadratic formula, Φ = (1+√5)/2.)

The notable point here is that the value for Φ is the Golden Ratio, and you need to ask yourself how did that get involved in the Pythagorean triangle?

Learn more about Kepler

Garment Details and Specifications

Elevate your outfit with the men’s premium heavyweight tee. The tee has a structured, classy fit and is both durable and soft thanks to its ring-spun cotton material. Layer the t-shirt or wear it on its own and enjoy great looks with little effort!

• 100% combed ring-spun cotton
• Charcoal Heather and Carbon Grey is 60% cotton and 40% polyester
• Fabric weight: 6.5 oz/yd² (220 g/m²)
• 20 singles
• Regular fit
• Side-seamed construction
• 1 × 1 rib at collar
• Single-needle edge stitch 7/8″
• Blank product sourced from Pakistan


Size guide

S (cm) 45.7 75
M (cm) 50.8 77.5
L (cm) 55.9 80
XL (cm) 61 82.6
2XL (cm) 66 85
3XL (cm) 71.1 87.6
4XL (cm) 76.2 90.2