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Tom Knight (scientist)

Tom Knight (scientist) is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tom Knight (scientist) rather than just read about it. In short: Tom Knight is an American synthetic biologist and computer engineer, who was formerly a senior research scientist at the MIT Computer Science and Artificial Intelligence Laboratory, a part of the MIT School of Engineering. He now works at the synthetic biology company Ginkgo Bioworks, which he cofounded in 2008.

Key takeaways

  • Tom Knight (scientist) belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tom Knight (scientist) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tom Knight (scientist) from memory before moving on to harder problems.

Reference excerpt

Tom Knight is an American synthetic biologist and computer engineer, who was formerly a senior research scientist at the MIT Computer Science and Artificial Intelligence Laboratory, a part of the MIT School of Engineering. He now works at the synthetic biology company Ginkgo Bioworks, which he cofounded in 2008.

Career

Work in electrical engineering and computer science Tom Knight arrived at MIT when he was fourteen. Even though he only started his undergraduate studies at the regular age of 18, he took classes in computer programming and organic chemistry during high school because he lived close to the university. He built early hardware such as ARPANET interfaces for host #6 on the network, some of the first bitmapped displays, the ITS time sharing system, Lisp machines (he was also instrumental in releasing a version of the operating system for the Lisp machine under a BSD license), the Connection Machine, and parallel symbolic processing computer systems. In 1967 Knight wrote the original kernel for the ITS operating system, as well as the combination of command processor and debugger that was used as its top-level user interface. ITS was the dominant operating system for first Project MAC and later the MIT Artificial Intelligence Laboratory and MIT Laboratory for Computer Science. ITS ran on PDP-6 and, later, PDP-10 computers. In 1968, Knight designed and supervised the construction of the first PDP-10 ARPANET interfaces with Bob Metcalfe. Knight developed a system to use standard television sets as a terminal interface to the PDP-10. In 1972, Knight designed one of the first semiconductor memory-based bitmap displays. This was later commercialized and led directly to the development of the Bedford Computer Systems newspaper layout system and influenced many of the bitmapped display devices available today. That same year, along with Jeff Rubin, Knight designed and implemented a network file system that provided the first transparent remote file access over the ARPANET. In 1974, Knight designed and implemented the prototype version of the MIT Lisp Machine processor, with the production version following in 1976. The Lisp Machine was a microprogrammed machine, tuned for high-performance emulation of other instruction sets. The design of the Lisp Machine was directly implemented by both Symbolics and LMI and was the basis of all of their computers. Texas Instruments implemented surface mount and single-chip versions of the architecture in 1983 and 1987, respectively. Knight collaborated with Jack Holloway in designing and implementing the Chaosnet, a re-engineered version of the Xerox 3 Mbit/s Ethernet. In 1975 this network became the first local area network on MIT's campus. Chaosnet's innovation of a preamble bit string for packets was eventually incorporated into the 10 Mbit/s Ethernet standard. In 1980, Knight participated in the development of the Connection Machine architecture and its original implementation. Other notable and diverse accomplishments during the 1980s included the creation of the first silicon retina in 1981, the creation of a single-chip optical mouse, the design of the Cross-Omega interconnection network architecture, and the design of the Transit multiprocessor interconnection architecture. During the early 1990s, Knight was involved in the formation of Permabit and of Exa Corporation and the architecture of the latter's initial version of its FX/1 lattice gas parallel fluid flow computer. Advances included using over-relaxation techniques to make 10x algorithmic improvements in lattice gas computations, landmark CFD accuracies, and correction of misconceptions about the origin of fluid turbulence in simple two-dimensional flow situations. Within the Artificial Intelligence Laboratory, he led the Abacus SIMD project, worked on VLSI micro displays, and made advances in the field of adiabatic (reversible) computing.

Work in synthetic biology It was also during this period that Knight's interests in biological systems began. Inspired in part by the work of Harold J. Morowitz, a Yale physicist and biologist, Knight studied biochemistry, genetics, and cellular biology, and set up a biology lab within the MIT AI Laboratory. In this lab he created the concept of the BioBrick plasmid DNA part and began creating a library of BioBricks that could be used to simplify the genetic engineering of Escherichia coli cells. Today, BioBricks form the basis of the enormous annual iGEM (International Genetically Engineered Machine) competition and Knight is sometimes referred to as the godfather of synthetic biology. Knight co-founded Ginkgo Bioworks, a synthetic biology company. Ginkgo Bioworks went public in 2021.

References

External links Knight Lab Current webpage at MIT Former webpage at MIT (more informative) The Readme for the release of an early Lisp Machine OS under a BSD license Home page for the BioBricks Foundation Webpage for the International Genetically Engineered Machine competition Ginkgo BioWorks Tom Knight's Ginkgo Bioworks Seeks To Reinvent Moore's Law Through Biochemistry Knight TV Resurrection

Worked examples

Example 1 — a first encounter with Tom Knight (scientist)

Start with the simplest possible case. Write down what Tom Knight (scientist) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tom Knight (scientist) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tom Knight (scientist) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tom Knight (scientist)

In research
Tom Knight (scientist) appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tom Knight (scientist) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tom Knight (scientist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Lisp (programming language) people, Living people, Massachusetts Institute of Technology alumni, so understanding it makes those chapters shorter.
In everyday life
Look for Tom Knight (scientist) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tom Knight (scientist) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tom Knight (scientist) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tom Knight (scientist) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tom Knight (scientist) in simple terms?

Tom Knight is an American synthetic biologist and computer engineer, who was formerly a senior research scientist at the MIT Computer Science and Artificial Intelligence Laboratory, a part of the MIT School of Engineering. He now works at the synthetic biology company Ginkgo Bioworks, which he cofo…

Why does Tom Knight (scientist) matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tom Knight (scientist)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tom Knight (scientist).

Tags

  • Lisp (programming language) people
  • Living people
  • Massachusetts Institute of Technology alumni
  • Massachusetts Institute of Technology staff
  • Synthetic biologists

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