Natural selection will only cause evolution if there is enough genetic variation in a population. Before the discovery of Mendelian genetics, one common hypothesis was blending inheritance. But with blending inheritance, genetic variance would be rapidly lost, making evolution by natural selection implausible.
Amazon Kindle Fire (2012) The Kindle Fire has a multitouch-capable 7-inch IPS display, a dual-core processor, and at 14.6 ounces, a pretty lightweight frame. The resolution on that screen is 1024 x 600. The battery is rated to last for eight hours of continuous reading or 7.5 hours of video playback (with WiFi switched off).
In terms of the processor, the first Kindle Fire model is powered by the Texas Instruments OMAP 4430, a 1GHz dual-core processor which is based on the ARM Cortex-A9 MPCore design. This processor also includes an integrated POWERVR SGX540 2D and 3D graphics accelerator.