In a series of videos posted to YouTube, engineer Aliaksei Zholner demonstrates a miniscule V8 engine he designed that is built completely from paper (with minor bits of scotch tape to prevent friction). The engine is so tiny it fits inside the plastic container found inside a Kinder egg. In the the videos Zholner demonstrates the progress of the engine coming together over several months, and the latest clip posted this weekend incorporates a paper throttle that effectively controls the speed of the little whirring device using compressed air. You can also see his wildly popular model v6 engine from last year.
From an article on makeuseof which addressed the question I had of how do I find a really good mid range laptop when mine went out last. I finally was handed a used one that I put an SSD drive into. I am now looking to upgrade the SSD drive for more space.
This article explains why is is so difficult to compare units, still the final two ACER units are a solid recommendation:
Acer Aspire E5-573G: As mentioned earlier, the E5-573G may use the slightly older Broadwell generation of CPU, but it’s paired with the NVIDIA GT-940M GPU and includes a 15.6″ 1080p screen, and 6GB of RAM. You won’t find a better performer anywhere for the money.
Acer Aspire V3-572PG-767J: This laptop uses the 4th generation Haswell architecture, along with the unupdated GT-840M GPU. It’s a solid performer and for $533, you could do a lot worse. There haven’t been big performance increases with Intel’s 5th and 6th generation processors, except within their integrated GPUs and in battery life. However, this unit uses a discrete GPU, so there’s not a tremendous difference between this laptop and modern ones.