1 Proterozoic: this eon refers to the time from the lower Cambrian boundary, 541.0 Â± 1.0 Ma, back through 2500 Ma. 2  As originally used, it was a synonym for Precambrian and hence included everything prior to the Cambrian boundary.
Canon's 50-megapixel EOS 5DS is the highest-resolution full-frame DSLR ever. If you thought the megapixel wars were over, think again: Canon's latest DSLRs cram just over 50 of them into a full-frame sensor.
Ray Cox IV, who goes by the Xbox Live Gamertag Stallion83, currently holds the world record (confirmed by the Guinness company) for the highest Xbox Live Gamerscore. His goal is to reach the 1 million mark and as of Sunday, his Gamerscore on Xbox Live is now over 953,000.