Small key shelf12/7/2023 This project is exploring that approach to forming radiation-reflecting materials.Ĭollapsible Space Telescope (CST) for Nanosatellite Imaging and Observation Principal Investigator: Elwood Agasid Photonic effects rely on ordered structures of the same size as the radiation, and although it is possible to fabricate such structures it is currently time consuming and expensive.Īn alternative approach is to use the ordered structures that are found in nature to make materials that can be used to reflect radiation. One approach to radiation reflection is through photonic effects. An alternative is to make a heat shield that can reflect the radiation. Thermal protection systems capable of dealing with such heat fluxes can be very heavy. Radiative heating occurs very early during reentry and at specific wavelengths, dependent upon the atmosphere. The specifics of the radiation depend on upon vehicle characteristics, speed and the atmosphere. Radiative heating during reentry becomes very significant as vehicles get larger and enter at high speeds. But their Office deal has been running for over a year, and the license that ZDNET's Alison DeNisco Rayome bought through it for a personal MacBook last year is still working.Don Ellerby Biologically Inspired Radiation-Reflecting Ablator (BIRRA) for Enabling Entry Descent and Landing Missions to Gas Giant Planets or Radiation-Intensive Environments Principal Investigator: Sylvia Johnson One caveat to note: While StackSocial is an authorized Microsoft partner and offers "lifetime" access to Microsoft Office, it is possible that Microsoft could end the license. After purchase, you'll instantly receive a link to download and a key to activate the software. Unlike Microsoft 365, which charges a yearly subscription fee, this license allows you to download the app suite and use it for life. Whatever you need, Microsoft Office 2021 probably has it. How about collaborating in real-time? Teams. Throw together a professional presentation? Check out PowerPoint's preset templates. Want to create a budget spreadsheet? Use Excel. ![]() Need to type an essay for class? Open Word. With the complete set of apps at your fingertips, you'll be prepared for just about any personal, professional, or creative project. ![]() If you see inaccuracies in our content, please report the mistake via this form. If we have made an error or published misleading information, we will correct or clarify the article. ![]() Our editors thoroughly review and fact-check every article to ensure that our content meets the highest standards. Our goal is to deliver the most accurate information and the most knowledgeable advice possible in order to help you make smarter buying decisions on tech gear and a wide array of products and services. ![]() ZDNET's editorial team writes on behalf of you, our reader. Indeed, we follow strict guidelines that ensure our editorial content is never influenced by advertisers. Neither ZDNET nor the author are compensated for these independent reviews. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. ZDNET's recommendations are based on many hours of testing, research, and comparison shopping.
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