The Idea Factory summary

The struggles and catastrophes of the first half of the twentieth century left a mark on Bell Labs.

During the Great Depression of the 1930s, for example, Bell Labs management needed to reduce employee working hours. Nevertheless, the young scientists made the best of the situation and used non-working hours to participate in study groups and pore over scientific textbooks.   

Bell Labs early on realized that good employee communication leads to innovation. Employee offices and the labs were located in different areas, so that scientists had to walk between the two. The idea was that when scientists crossed paths, they could chat and exchange ideas.

This strategy worked, as the Labs were a hotbed of groundbreaking innovation in the post-war decades. One major achievement came in the form of the transistor, invented by Labs scientists in the 1940s.

When the transistor was unveiled publicly in 1948, its importance and potential wasn’t immediately grasped on a grand scale. Yet there was one person who got it: Bell Labs mathematician Claude Shannon.

In the mid-1940s, Bell Labs technicians began experimenting with more efficient methods for transmitting telephone calls. One idea that seemed promising was a method known as pulse code modulation, or PCM.

Since the invention of the telephone, engineers dreamed of the next big communications step, allowing a person in North America to call family in Europe. Yet this seemed a Herculean task, considering the thousands of miles of cable required to cross the Atlantic – and even then, it just wasn’t possible to transmit signals over such a distance of cable.

It wasn’t until the 1950s when overseas telephony became possible – and with it a new invention called satellite technology. Of course it was Bell Labs scientists who developed one of the first communications satellites.

The transistor and the radio. Solar cells and communication satellites. All of these technologies originated at Bell Labs, and each have completely revolutionized the modern world. Yet there was still more to come.

In the 1960s, Bell Labs scientists began research on mobile telephony – the working or use of mobile telephones. There were two problems they had to solve: First, there were few available wireless frequencies, meaning only a few calls could be placed simultaneously. Second, it wasn’t clear how a caller could move around without a call disconnecting.

What exactly is innovation? An idea that strikes a lone inventor in a moment of inspiration?

Actually, innovation tends to be more of a convergence of ideas over the course of time, whether months or even decades, as groups of people carefully consider various questions.

By the 1970s, the political and social acceptance of AT&T’s telecommunication monopoly began to wane.

The US Justice Department headed up a lawsuit that demanded AT&T be divided into smaller, competitive companies. In 1984, AT&T was finally forced to let go of its local phone company holdings, which then became independent corporations.