Watch: The Brilliant Life of Ada Lovelace

Getty Images
Getty Images

Ada Lovelace is widely considered to be the first computer programmer—and every year, the second Tuesday of October is set aside to honor that achievement. She worked with Charles Babbage on his proto-computer designs, and translated an academic paper about Babbage's Analytical Engine from French to English. In the process, she discovered errors in Babbage's design, fixed them, and added a pile of new commentary in a series of notes that were longer than the original paper itself.

Among Lovelace's contributions was "Note G." In it, she wrote an algorithm intended to be implemented by the machine. This algorithm is what many consider to be the first computer program. She wrote:

We will terminate these Notes by following up in detail the steps through which the engine could compute the Numbers of Bernoulli, this being (in the form in which we shall deduce it) a rather complicated example of its powers. ...

(And then it's formulae all the way down.)

If you've ever been curious about what Lovelace did, or why she was such a strong mathematician, let this six-minute mini-biography be your guide:

If you're curious about her translation of that paper, it's online.

The UK Wants to Use 'Noise Cameras' to Crack Down on Loud Cars and Bikes

iStock/Ales-A
iStock/Ales-A

Snarled traffic creates more than air pollution. Thanks to modified engines, mufflers, and exhaust systems on cars and motorcycles, congested roadways can become symphonies of belching and rattling. Now, the UK government is looking to do something about it.

According to the BBC, the Department for Transport is currently testing “acoustic cameras” that will measure the decibel levels of vehicles on public roads. If a microphone detects a vehicle producing an excessive amount of noise, a camera will photograph the source and the owner will be fined.

What defines excessive? That remains to be seen. The UK enacted a law in 2016 limiting new cars to no more than 74 decibels. It's primarily older cars and modified motorbikes that create noise disturbances and prompt complaints from people living nearby.

The trial equipment will also need to prove it can identify one vehicle's noise emissions from another's and single out cars from other possible sources of sound. If the trial results are promising, it's likely the "acoustic cameras" will be policing UK roads in the near future.

[h/t Jalopnik]

This Scented Smart Candle is Fire-Safe and Alexa-Friendly

LuDela
LuDela

Candlelight can do a lot for a room, setting a mood and signaling that it’s time to relax. But not everyone is comfortable with the idea of nursing a tiny flame and melting wax indoors. Technology has provided a solution in the form of the LuDela Perfect Pillar, a smart candle and decorative accent that takes the worry out of a flame-lit atmosphere.

The battery-powered artificial candle generates its flame with refillable liquid paraffin and offers a variety of different scents in the form of SunScent fragrance rings, which you can place on top of the candle to release the scent of your choice. The candle never dims or melts, and you can swap out its fragrance ring at any time to give your home a new scent.

The LuDela Perfect Pillar smart candle starter set
LuDela

The LuDela candle's smart features make it a safer choice than your typical accent candle, especially for homes with small kids or pets. For instance, it has a sensor inside that detects when the device is tilting; if it falls over, the flame is automatically extinguished. You can also turn the candle on and off or create a timed session using the included remote control or your Amazon Alexa. The remote control comes with a child-lock option to prevent little hands from turning the candle on without adult supervision.

You can find the LuDela Perfect Pillar on Amazon, where a starter set with a wax candle fixture, two liquid paraffin refills (which burn for approximately 20 hours each), two fragrance rings, and a remote control goes for $99. Subsequent refill capsules cost $10 per two-pack.

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