How to Use Smart Lighting to Transform Your Kid’s Bedroom

How to Use Smart Lighting to Transform Your Kid’s Bedroom

Internet-connected smart lights are more affordable than ever and easy to use via remote controls or smartphone apps.Options range from simple bulbs that slot into regular fixtures to smart light strips that can be installed in unlikely spots.

Amazon Prime Day 2020: The 38 Absolute Best Tech Deals

Amazon Prime Day 2020: The 38 Absolute Best Tech Deals

Photograph: Amazon As usual, Amazon has slashed prices on many of its own house-made products and services, including smart speakers and screens, and even discounted memberships to premium services like Kindle Unlimited.

Spies Can Eavesdrop by Watching a Light Bulb's Vibrations

Spies Can Eavesdrop by Watching a Light Bulb's Vibrations

They say it allows anyone with a laptop and less than a thousand dollars of equipment—just a telescope and a $400 electro-optical sensor—to listen in on any sounds in a room that's hundreds of feet away in real-time, simply by observing the minuscule vibrations those sounds create on the glass surface of a light bulb inside.

It's Not Just the Extreme Heat. It's the Extreme Humidity

It's Not Just the Extreme Heat. It's the Extreme Humidity

Intolerable bouts of extreme humidity and heat that could threaten human survival are on the rise across the world, suggesting that worst-case-scenario warnings about the consequences of global heating are already occurring, a new study has revealed.

Do LEDs Cause Orange Presidents?

Do LEDs Cause Orange Presidents?

Incandescent bulbs are classified by how much electrical power they use, like 60 watts or 100 watts.This is how old-fashioned fluorescent tubes work, except that the UV light is produced by LEDs instead of an excited gas.

Space Photos of the Week: Bumper-Car Galactica

Space Photos of the Week: Bumper-Car Galactica

Imagine traveling through the universe in your space pod, and stumbling on what looks like a massive galactic light bulb. This glowing beauty NGC 3384 isn’t like most galaxies, with a mix of mature stars and new stars, but is filled with nearly dead stars.

The Loopy Secrets of How Charging Cables Work

The Loopy Secrets of How Charging Cables Work

To light the bulb, I just need to pick two of these wires so that I can make a complete circuit with the battery and let current flow through the filament. The voltmeter, like just about every electrical measuring device, needs to have a complete circuit.

Need an Ohm's Law Party Trick? Take a Light Bulb's Temperature

Need an Ohm's Law Party Trick? Take a Light Bulb's Temperature

Finally, the resistance is really just a proportionality constant between the voltage and the current measured in units of ohms (often using the symbol Ω). Let's measure current and voltage to determine the temperature of a light bulb.

Ikea's Slow and Steady Plan to Save the Smart Home

Ikea's Slow and Steady Plan to Save the Smart Home

“We’ve learned a lot from Sonos, how they’re set up in terms of helping customers when they’re dealing with network issues, or products that are related to a Sonos speaker,” says Block.

Why'd the Polar Vortex Cancel So Many Flights? Blame Humans

Why'd the Polar Vortex Cancel So Many Flights? Blame Humans

“When you get below 35 degrees Fahrenheit, everything starts slowing down,” says Jeff Kohlman, of the Aviation Management Consulting Group. “When you get below 35 degrees Fahrenheit, everything starts slowing down,” Kohlman says.