Exercising should, in theory, be free. If you can move your body, you can exercise. Whether

Exercising should, in theory, be free. If you can move your body, you can exercise. Whether that’s running, dancing or squatting, getting fit needn’t cost an impeccably toned arm and a leg. Last year’s UK State of the Fitness Industry Report found that the total market value is now estimated to be £4.4 billion and the number of gyms in the UK is increasing. Gym memberships aren’t cheap, but many Brits are signing up and then wasting their money: the average gym-member spent £550 on membership in 2015 but only went 13.5 times in that time – a cost of £40 per visit. That may seem pricey, but that’s the average – there are a select number of luxury gyms in the UK (predominantly in London) where the cost of monthly membership could pay for a month’s rent in the capital. I’m not a natural gym bunny. I’m also a millennial working in the media who has to pay rent in London. And for these reasons, I’m not a gym member. If I was to join one though, I’d probably go to one of the cheap chains which cost about £20 a month. Sometimes, all you want is a few gym machines. Boom, workout, job done. But if you’re wealthy enough – well, why wouldn’t you spend your money on ...

Easy Bake Ovens have changed a lot since you burnt down your house by installing a

Easy Bake Ovens have changed a lot since you burnt down your house by installing a 100 Watt light bulb inside one. Now, Easy Bake Ovens are [bigclive] material. It’s a piece of nichrome wire connected through a switch across mains power. Part of the nichrome wire is a resistor divider used to power a light. This light assembly is just a LED, some resistors, and a diode wired anti-parallel to the LED. This is a device designed for 120 V, but [Jason] wanted it to run on USB-C. While there are USB-C chargers that will supply enough power for an Easy Bake Oven, the voltage is limited to 20V. Rather than step up the USB-C voltage, [Jason] added some nichrome wires to divide it into six equal segments, then wired all the segments in parallel. This lowers the voltage by one sixth and increases the current by a factor of six. Good enough. The power supply used for this hack is the official Apple 87W deal, with a USB-C breakout board (available on Tindie, buy some stuff on Tindie. Superliminial advertising) an Arduino Uno connected to the I2C pins. A few bits of code later, and [Jason] had a lot of power coming over a USB cable. With the Easy Bake Oven fully converted, [Jason] whipped u...