Other studies have also shown that PCBs cause liver tumors (EPA 1996). One study, conducted by the National Cancer Institute (NCI) in 1978, found that a commercial PCB mixture caused a rare type of stomach tumor (gastric adenocarcinoma) in 6 of 144 exposed rats.
VR makers, at least in the fine print, want us to tread lightly through virtual territory. âThe Gear VR should not be used by children under the age of 13. Adults should monitor children (age 13 and older),â goes Samsungâs disclaimer for its new device. âProlonged use should be avoided, as this could negatively impact hand-eye coordination, balance, and multi-tasking ability.
The other big compromise with an iPhone 6-powered VR headset is that 4.7 inches is a little small for a virtual reality screen. The field of view isn't great. The product page says it's around 100 degrees, but we consistently saw two indentations on the right and left sides of your view that take away from the illusion.