In the latest video from YouTubers The Slow Mo Guys, curious camera operator and host Gavin Free used a defenceless apple and a 150psi air compressor to demonstrate the Coandă effect. This is when a moving fluid which comes in contact with a convex surface follows its curve, rather than continuing on its initial path.

“As the jet of air bounces off one side of the apple, it creates an area of low pressure between the air and the curved surface,” explained Free. “This area of low pressure effectively pulls in the airflow, allowing it to follow the curve of the apple. At this point, as the curved surface of the apple is putting a force on the air, the air exerts an equal and opposite force upward on the apple.” Read more…

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SAVE 68%: A two-year subcription to NordVPN is on sale for £2.86 per month as of Nov. 29, and includes an extra three months for free.

We know you’re probably fed up of hearing about VPN deals, but we’re not sorry. There have been loads of impressive deals dropped by the leading providers over the Black Friday shopping season, and you should know about them.

NordVPN is offering one of the best of these Black Friday deals, but it’s only available for a limited time. A two-year subcription to NordVPN is on sale for £2.86 per month as of Nov. 29, and includes an extra three months for free. This might change as we move into Cyber Monday, so we recommend securing this deal when you can. Read more…

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SAVE UP TO 50%: Save on sex toys and lingerie in Lovehoney’s Black Friday sale, with deals live until midnight on Nov. 29.

We have already made plenty of noise about Lovehoney’s impressive Black Friday sale, and we’re going to shout about it just once more. You can save up to 50% on a wide range of sex toys and lingerie sets until midnight on Nov. 29, so this really is your last chance to bag the best deals.

Lovehoney has made your life a little easier by lining up a selection of top deals from the sale, but we recommend checking out everything that’s on offer. There is something for everyone in this sale, whether you’re single, in a relationship, or somewhere in between. Read more…

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Save 82%: A three-year subscription to CyberGhost VPN is on sale £1.99 per month for Black Friday, and includes three extra months of coverage for free.

Black Friday and Cyber Monday are the best times to shop for deal on VPNs, but what are you supposed to do if an offer isn’t live throughout the shopping season? Should you jump on a deal or wait for something better?

CyberGhost VPN’s impressive Black Friday deal expires at midnight on Nov. 27, but what if something better is just around the corner? CyberGhost VPN could be readying a big deal for Cyber Monday, but waiting would be a risky game to play. Read more…

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