Tradicionalmente, as aeronaves são concebidas para serem altamente visíveis por razões de segurança, exceto os aviões militares, que dão prioridade à invisibilidade. Têm sido utilizados vários métodos para minimizar a visibilidade através de materiais, design e tecnologias para reduzir a reflexão e as emissões de luz e som. Recentemente, cientistas na China propuseram uma...
As viagens aéreas supersónicas prometem uma velocidade sem precedentes, mas são dificultadas pelas perturbadoras explosões sónicas que as tornam impraticáveis em terra. Em colaboração com a Lockheed Martin, a NASA pretende ultrapassar este obstáculo com o X-59, uma aeronave experimental concebida para atingir uma velocidade notável sem a perturbação sonora que a acompanha.
| Cookie | Duração | Descrição |
|---|---|---|
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |