Adam Thompson

Thank you, Madam Deputy Speaker. I thank my hon. Friend for his intervention—it was perfect. He is absolutely right, and I will leave the perfection to the mathematicians. To illustrate my point, I hear people in engineering asking for products to be made perfectly—for the angle of the corner of the table to be exactly 90° or the surface of the microscope to be infinitely smooth. To study metrology is to understand the concepts of imperfection and uncertainty and apply those to everything. If one zooms in close enough, the angle is never exactly right, and the surface is never perfectly smooth. On Second Reading, I made reference to the optical mirrors used in the James Webb space telescope. They are incredibly smooth, yes, but to examine them at the atomic scale, one would find deviations from the nominal plane that mirror those in the Grand Canyon. Being an engineer involves accepting these deviations within the context of the work we undertake towards our goal of constant improvement—be that in the creation of, say, aerospace engines or, indeed, national legislation. My expertise within surface metrology was in the development of X-ray computed tomography for measuring surfaces. Alongside my good friend Dr Andy Townsend at the University of Huddersfield, who made similar discoveries at the same point in history—a phenomenon that is common across science—I was among the first to be able to use X-rays to measure the interior surface of parts that were otherwise hidden to both the eye and the machine. X-ray computed tomography had never previously been good enough to measure surfaces, with the imaging resolutions achievable lagging significantly behind those required to separate measurements from noise. Previously, such measurements were not really needed, as to manufacture a surface, one generally had to access that surface with a machine tool, so one could similarly access it with a measurement tool. However, with the birth of industrial additive manufacturing—often called 3D printing—we could suddenly make things with hidden internal geometries that did not need tool access and could not be measured. Without measurement, though, we cannot verify that the parts we make will function as we require them to. As such, new technology was required to allow us to create additively manufactured parts, be they novel, much lighter aeroplane parts or new joint replacements finely customised to suit the individual. Alongside our colleagues, Andy and I solved this problem by demonstrating that X-ray computed tomography had become good enough to measure those surfaces. This Bill mirrors that “good enough” paradigm. Current legislation places us at risk of falling out of alignment with the rest of the world, which in turn risks our ability as the British to maintain our position at the forefront of international science. In its current, unamended form, the Bill grants the Secretary of State the necessary authority to keep pace with the guidance of relevant experts. The amendments proposed by the Opposition would only hinder our ability to stay aligned with the continuous advancement of progress.