Nine-Week Bubble Ball Soccer League for One or Two from South Bay BubbleBall (Up to 50% Off)

South Bay BubbleBall

Up to 50% Off
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What You'll Get


After purchasing this deal, you will need to visit the website listed on your Groupon voucher to complete redemption.


Choose Between Two Options

  • $179 for a nine-week BubbleBall Soccer league for one ($300 value)
  • $299 for a nine-week BubbleBall Soccer league for two ($600 value)

Bending the Ball: A New Spin on Soccer Shots

Whenever a soccer ball curves, seemingly changing its orbit in midair, NASA scientists may rush to classify it as a planet. But in fact, the movement is due to yet another physics concept pioneered by Isaac Newton: the Magnus effect, a phenomenon first described in regard to tennis. Newton noted that topspin made the ball dip, whereas backspin made for a straighter trajectory. In other words, the way a ball spins affects its path in the air.

Usually, a ball curves in the same direction in which it’s spinning; air moves with the ball on the side that spins forward, pushing it in the other direction. A ball spinning counter-clockwise, for example, tends to bend to the left. But a ball’s movement may not always be so easy to predict. Its trajectory is also affected by the smoothness of the ball’s surface. In fact, a perfectly smooth (or laminar) ball would likely curve in the opposite direction of a rough-surfaced (or turbulent) ball when kicked in exactly the same manner.

Of course, nobody plays soccer with a perfectly smooth ball, despite the substantial benefit it would have on blooper-reel ratings. Even so, different stitching patterns do alter the roughness of a ball’s surface. This is why there seems to be a controversy every four years over a new ball design—even the coolest new look can have a drastic effect on a ball’s in-flight physics.

The Fine Print


Promotional value expires Feb 2, 2016. Amount paid never expires. Must sign waiver. Registration required. Limit 2 per person, may buy 1 additional as gift. Valid only for option purchased. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

About South Bay BubbleBall


By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.