This Is the Most Visible Color in the World

Vollebak
Vollebak

An orange vest isn’t the best way to stay visible in traffic anymore. This extremely bright green coat is. The Nano Meter 555 Midlayer jacket, made by the outdoor sports retailer Vollebak, is designed to be the most visible color ever, as Co.Design reports.

The green color was created by analyzing the way the rods and cones in our eyes are stimulated by different wavelengths of light. The company found that the human eye is most sensitive to light at a wavelength of 555 nanometers—a bright green. It stands out against any road you’re biking down or any mountain you’re climbing, allowing you to remain visible even from high in the air.

Vollebak’s garment also comes equipped with special reflective markers that make it easier for others to see you moving in the dark. The bright green might not show up in the middle of the night, but the reflective discs will, and their placement on the jacket is designed to allow other people to recognize you as a person in a quarter of a second—even if they can’t see the actual outline of your body.

Ideally, you shouldn’t need to wear special reflective clothing while you bike down the street, but if you do want to stand out on the road, this is the way to do it (though studies vary when it comes to what kind of high-visibility clothing is actually useful to cyclists). It could also be useful for hiking or backpacking, since you could easily be seen by a helicopter if you needed a rescue.

Just think of how much more fashionable your local crossing guard would look in one of these.

[h/t Co.Design]

Friday’s Best Amazon Deals Include Digital Projectors, Ugly Christmas Sweaters, and Speakers

Amazon
Amazon
As a recurring feature, our team combs the web and shares some amazing Amazon deals we’ve turned up. Here’s what caught our eye today, December 4. Mental Floss has affiliate relationships with certain retailers, including Amazon, and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Good luck deal hunting!

Google Is Tracking Everything You Do With Its ‘Smart’ Features—Here’s How to Make That Stop

Maybe you don't want Google seeing how many exclamation points you use in your emails.
Maybe you don't want Google seeing how many exclamation points you use in your emails.
Taryn Elliott, Pexels

Since we don’t all have personal assistants to draft emails and update our calendars, Google has tried to fill the void with ‘smart’ features across Gmail, Google Chat, and Google Meet. These automatic processes cover everything from email filtering and predictive text to notifications about upcoming bills and travel itineraries. But such personalized assistance requires a certain amount of personal data.

For example, to suggest email replies that match what you’d choose to write on your own—or remind you about important emails you’ve yet to reply to—Google needs to know quite a bit about how you write and what you consider important. And that involves tracking your actions when using Google services.

For some people, Google’s helpful hints might save enough time and energy to justify giving up full privacy. If you’re not one of them, here’s how to disable the ‘smart’ features.

As Simplemost explains, first open Gmail and click the gear icon (settings) in the upper right corner of the page. Select ‘See all settings,’ which should default to the ‘General’ tab. Next to ‘Smart Compose,’ ‘Smart Compose personalization,’ and ‘Smart Reply,’ choose the ‘Off’ options. Next to ‘Nudges,’ uncheck both boxes (which will stop suggestions about what emails you should answer or follow up on). Then, switch from the ‘General’ tab to ‘Inbox’ and scroll down to ‘Importance markers.’ Choose ‘No markers’ and ‘Don’t use my past actions to predict which messages are important.’

Seeing these settings might make you wonder what other information you’ve unwittingly given Google access to. Fortunately, there’s a pretty easy way to customize it. If you open the ‘Accounts’ tab (beside ‘Inbox’) and choose ‘Google Account settings,’ there’s an option to ‘Take the Privacy Checkup.’ That service will walk you through all the privacy settings, including activity tracking on Google sites, ad personalization, and more.

[h/t Simplemost]