The evolution of the computer mouse: 45 years of pointing and clicking
The Wired blog has put together a gallery of 17 photos documenting the evolution of the computer mouse over the past 45 years. It all started with a simple wooden device created by Douglas Engelbart and Bill English in a Stanford laboratory. Back then, of course, the first "mouse" was actually known as the "bug." Here it is, shown in cross-section in all its wooden glory, being held by Douglas Engelbart. Inside, you can see the patented mechanism
that tracks its movement.
Over the next several decades, the device "evolved" into various shapes and configurations, including new buttons that could be used for tasks such as gaming as well as for navigation. During some periods, ergonomic design and aesthetic value became central concerns, while in other iterations, the focus was on pure functionality.
The way that you think about stress can actually transform the effect that it has on you – and others.
- Stress is contagious, and the higher up in an organization you are the more your stress will be noticed and felt by others.
- Kelly McGonigal teaches "Reset your mindset to reduce stress" for Big Think Edge.
- Subscribe to Big Think Edge before we launch on March 30 to get 20% off monthly and annual memberships.
Three scientists publish paper proving that not Venus but Mercury is the closest planet to Earth
- Earth is the third planet from the Sun, so our closest neighbour must be planet two of four, right?
- Wrong! Neither Venus nor Mars is the right answer.
- Three scientists ran the numbers. In this YouTube video, one of them explains why our nearest neighbour is... Mercury!
The blood of horseshoe crabs is harvested on a massive scale in order to retrieve a cell critical to medical research. However, recent innovations might make this practice obsolete.
- Horseshoe crabs' blue blood is so valuable that a quart of it can be sold for $15,000.
- This is because it contains a molecule that is crucial to the medical research community.
- Today, however, new innovations have resulted in a synthetic substitute that may end the practice of farming horseshoe crabs for their blood.
The distance between the American dream and reality is expressed best through literature.
- Literature expands our ability to feel empathy and inspires compassion.
- These ten novels tackle some facet of the American experience.
- The list includes a fictional retelling of the first Native American to graduate from Harvard and hiding out in inner city Newark.
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