8

The Best Headphones Under $100

by Justin Thomas •

I’ve tested a lot of headphones in the Reactual Labs. I’ve discovered that there are, in fact, great quality headphones priced under $100. The three of the best rated headphones are: Sennheiser, Grado Labs and AKG. Other popular brands found in electronics stores tend to have inferior sound at this price level. Here are the best headphone under $100:

2

The Best iPhone Battery Pack

by Justin Thomas •

The iPhone can be power-thirsty. For many people a battery extender is an essential iPhone or iTouch accessory. Here are four of the best backup iPhone battery packs. Note: iPhone battery performance times vary widely based on individual usage habits and applications. Wherever possible we have tried to give details of a backup battery’s capacity relative to an iPhone’s full …

28

Liquid-Filled LED Bulbs: 360 Degree Light

by Justin Thomas •

I’ve been testing a new LED bulb called the HydraLux. These unique bulbs are filled with a clear liquid coolant (a non-toxic paraffin oil). Other LED bulbs use large metal fins or fans for cooling purposes. The advantage of using a liquid coolant is that the LED bulb can produce 360° light like a regular incandescent bulb.

15

How To Build A Deep Bass System For $750

by Justin Thomas •

In this article I will describe how to build a high-fidelity, bass-intensive sound system for under $1000. The secret ingredient of the system is the use of tactile transducers. These transducers effectively eliminate the need for expensive woofers or subwoofers. It’s an efficient method of producing deep, high-fidelity bass for a fraction of the usual cost. Many of the ideas presented here …

7

Updates From The MetaEfficient Kitchen Labs

by Justin Thomas •

This summer I’ve been working on food-related optimization projects, here are some updates: I now have subscriptions with two local farmers (through a CSA or Community Support Agriculture). One farmer provides me with raw milk, raw butter and eggs, the other farmer provides vegetables and fruit. They both happen to deliver to same street in my neighborhood, so I ride my bike …

13

A Solar Flower Tower Rises In The Desert

by Justin Thomas •

This unusual solar tower was designed by Israeli architect Haim Dotan for AORA Solar. It is set to launch on June 24 in South Israel. The tower has 30 tracking mirrors (heliostats) that reflect sunlight towards the top of a 30-meter high solar tower. The top of the tower has a special solar receiver and a 100kw gas turbine. The …

7

Hyper-Efficient House Completed In Virginia

by Justin Thomas •

This new home in Virginia was designed for optimal efficiency. It’s the first to receive LEED platinum in Virginia. Optimal elements that set it apart: an integrated rain water collection system (the site design features zero site runoff for a one-inch rain event), integrated geothermal wells, and exceptional indoor air quality. The home was built by Metro Green and designed …

25

The Best Wireless Earbuds For iPods

by Justin Thomas •

Wireless earbuds allow you to listen to an iPod or MP3 player without a tangle of cords. They are particularly useful for listening while you are engaged in sports. There are two types of wireless earbuds: those that transmit wirelessly via an iPod adapter, and those that attach directly to an iPod shuffle. Most of the transmitting wireless earbuds use the …

29

The Best Cargo Carrying Bikes Of 2014

by Justin Thomas •

Surly Big Dummy Longtail Commuter Bicycle

If you are interested in carrying cargo on your bike you should consider a dedicated “cargo bike” or “utility bike”. These bikes are great for transporting luggage while commuting, touring or running errands. Cargo bikes feature a long wheel base for more space on the rear luggage rack. They usually have a strong frame and wheels to carry more weight …

11

World’s First 100% Solar-Powered Stadium

by Justin Thomas •

A couple of years ago, we wrote about a 1.3 megawatt solar-powered stadium in Switzerland. A new solar powered stadium has been built in Taiwan for the 2009 World Games in July. Designed by Japanese architect Toyo Ito, the stadium incorporates 8,844 solar panels on the roof. The roof will generate enough energy to power the building’s 3,300 lights and …