Almost all of the spacesuits appeared in science fiction movies far from what we saw in real space experiments. The former are mostly tight-fitting designs that look like the flexible and supple outer skin of a Spider-Man, but as a spacesuit, They are not likely to appear in red; but in reality the spacesuit does not always seem to be able to get rid of the rigid bulky appearance, this spacesuit looks like a blown balloon, the astronaut was wrapped no matter what action, Will look difficult, clumsy. Although spacesuits in science fiction movies are not enough for a contrasting standard - in real space trials, the safety and practicality of space suits are paramount - but at least one manifests the promise of more flexibility, lighter weight , More humane, like a real clothes, this is our vision for the future of spacesuit. Fortunately, aerospace scientists have never overlooked such expectations. More flexible and more humane, which is the research direction of spacesuit research experts all the time. They hope to develop a skin-friendly space suit that does not interfere with human activities like traditional space suits, weighing about 45 kilos while traditional space suits tend to weigh 150 kilos. Dava Newman, a professor at the Aerospace Research Institute at the Massachusetts Institute of Technology in the United States, is one of the key researchers in this lightweight suit for spacesuit research. She and her research companions called the spacesuit "Biosuit ). Late last year, they launched a model for "bio clothing," a model that has solved many life-sustaining issues, but was not suitable as a spacewalk for the first time. However, Professor Dawa and her colleagues hope that a modified version will be developed as soon as possible so that they can take on the task of "the United States again going to the moon" in 2012. Skin-friendly space suits Scientists at the Massachusetts Institute of Space Studies, a Massachusetts Institute of Technology, often refer to such skin-friendly space suits as "hybrids," down from 150 kilos in conventional space suits to 45 kg. "Biological clothing" actually uses a completely different principle of operation, but its life support system is almost intact the design of the traditional spacesuit, it will be back behind the astronauts in the process of space activities Provide astronauts with oxygen and food. Like the traditional space suit, the "biological suit" must create a micro-environment similar to the Earth's environment for astronauts to ensure the survival of human beings. However, the traditional space suit uses a "pressurized space suit" Members create atmospheric pressure, which is why the traditional spacesuit looks very bloated. "Biological clothing" is the use of a "mechanical back pressure" approach to achieve pressure. Like the traditional spacesuit, "bio-suit" also adopts a multi-layer structure design. In addition to the underwear layer, perspiration and heat dissipation layer, Professor Dawa also uses a shape memory alloy that can be accurately shaped, "Made a pair of lightweight, flexible" skeleton. " Outside of this "skeleton," Professor Dawa cast a layer of heat-insulating radiation-proof fabric made of high-grade hybrid fiber and then coated the fabric with a coating to completely de-stretch the fabric Sex. Between the bones and the fabric, Professor Dawa is filled with a gel of a polymer that swells easily under heat. Wearing such "biological suits", astronauts in space to perform the task of spacewalk, the spacesuit once exposed to high temperatures, whether from space radiation or from the astronaut's own breathing process, the temperature is sufficient to allow the gel to expand stand up. However, the expansion of the gel does not spread outwards because the surface fabric is tight and can only be squeezed inwards, which in the end forms an internal pressure which is the same as the gas pressurization in the spacesuit , But "biological suits" will not become bloated at the same time, but also eliminates the weight of gas pressurization equipment. What is the essential difference between this "bio-suit" on the skin and the traditional space suit? Professor Dawa said: "The traditional spacesuit is built to accomplish a certain task, but the" biological suit "is a man-made spacesuit." In space, due to the weightlessness and size of the spacesuit, Astronauts often lose as much as 40% of their mobility, and when they do something in space, it's hard to get even handy, even with a simple move. However, "biological clothing" can guarantee the safety of astronauts at the same time allow flexibility and certain sense of power. Professor Dawa and her research team used 3D images to study muscle movements while walking or exerting force. In the end, they found that when the muscles were in motion, the muscles produced some supportive force lines, so Professor Dawa let her " The creature suits are sewn up according to the lines of these lines to ensure that the lines remain flexible and resilient while they are in motion, while the rest of the space suit is tight and serves to protect and isolate. "The traditional spacesuit simply designed the joint as a bearing or designed the elbow to be moved, but the range of activities for this astronaut is still limited. We hope that 'biological clothing' is similar to the second It's a space suit that allows astronauts to do what they want, "Professor Dawa said." Then it will make astronauts more freedom on the moon or on Mars, "said Dawa.