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An international research team has developed mechanical metamaterials with a high elastic energy density. Highly twisted rods that deform helically provide these metamaterials with a high stiffness and enable them to absorb and release large amounts of elastic energy. The researchers conducted simple compression experiments to confirm the initial theoretical results.
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In-brief analysis
April 2, 2025
Data source: U.S. Energy Information Administration, Form EIA-851A, Domestic Uranium Production Report (Annual), and Form EIA-851Q, Domestic Uranium Production Report (Quarterly)
Note: Data were withheld from second-quarter 2020 to second-quarter 2021. P=preliminary data; W=withheld
Companies in the United States produced more uranium concentrate in 2024 than in any year since 2018 after a sustained period of higher uranium prices spurred production, according to our recently published Domestic Uranium Production Report—Quarterly. The increase largely came from two in-situ recovery facilities, one in Texas and one in Wyoming, and the resumption of uranium production at White Mesa Mill in Utah, the only operational uranium mill in the United States. Production in the fourth quarter of 2024 alone was higher than the total annual production for each of the years in 2019–23.
Energy Fuels’
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Our smart home devices can be compromised, but you can take a few simple steps to reduce your risks.
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Executive summary
Many networks have a gap in their defenses for detecting and blocking a malicious technique known as “fast flux.” This technique poses a significant threat to national security, enabling malicious cyber actors to consistently evade detection. Malicious cyber actors, including cybercriminals and nation-state actors, use fast flux to obfuscate the locations of malicious servers by rapidly changing Domain Name System (DNS) records. Additionally, they can create resilient, highly available command and control (C2) infrastructure, concealing their subsequent malicious operations. This resilient and fast changing infrastructure makes tracking and blocking malicious activities that use fast flux more difficult.
The National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), Canadian Centre for Cyber Security (CCCS), and New Zealand National Cyber Security Centre (NCSC-NZ) are releasing this joint cybersecurity advisory (CSA) to warn organizations, Internet service providers (ISPs), and cybersecurity service providers of the ongoing threat of fast flux enabled malicious activities as a defensive gap in many networks. This advisory is meant to encourage service providers, especially Protective DNS (PDNS) providers, to help mitigate this threat by taking proactive steps to develop accurate, reliable, and timely fast flux detection analytics and blocking capabilities for their customers. This CSA also provides guidance on detecting and mitigating elements of
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