Hacker News Front Page
์ค๋ ์ฑํฅ
IT/๊ธฐ์
Notable Properties of Specific Numbers
Comments
๐บ๐ธ ๋ฏธ๊ตญ ยท "PROPER" ยท ์ด 131๊ฑด
ํํฐ ๋ณด๊ธฐํ์ฌ ์ง์
50.0
0 = ๋ถ์ ์ฐ์ธ
50 = ์ค๋ฆฝ
100 = ๊ธ์ ์ฐ์ธ
์ต๊ทผ 7์ผ ๊ธฐ์ค 11,424๊ฑด์ ๋ถ์ํ ๊ฒฐ๊ณผ, ๋ด์ค ์ฌ๋ฆฌ์ง์๋ 50.0(๊ท ํ)์ ๋๋ค. ๊ธ์ 1๊ฑด(0.0%)ยท์ค๋ฆฝ 11,422๊ฑด(100.0%)ยท๋ถ์ 1๊ฑด(0.0%)์ด๋ฉฐ, ์ค๋ฆฝ ๋น์ค์ด ๋๋ ทํ๊ฒ ๋์ต๋๋ค. ์ฑํฅ ์ง์๋ ์ข ํฉ 19.3(์ค๋ ๊ท ํ)์ ๋๋ค.
Comments
Trump has rarely visited Camp David during either of his presidential terms, though he frequently spends time outside the White House at his own properties.
Florida officials had asked the justices to hear a lawsuit accusing California and Washington of improperly granting licenses to an immigrant accused in a fatal crash.
These weatherproof outdoor security cams keep a watchful eye on your property while you get on with life. Our list includes battery-powered cameras that need no subscription.
Oppo launched a new smartphone accessory that makes it easier to snap selfies using your smartphone's rear cameras that typically feature better sensors than front-facing cameras. The Bubble offers similar functionality to the recently announced Insta360 Snap with a screen providing live camera previews so you can properly frame shots, plus remote camera controls and [โฆ]
New York City Democratic Mayor Zohran Mamdani plans to seize neglected properties from landlords and transfer them to new ownership groups. โFor buildings that have suffered chronic neglect, we will work to transfer ownership to responsible stewards. Stewards that include community land trusts, non-profits, or even the tenants themselves,โ Mamdani said. โWhen necessary we will ...
This sponsored article is brought to you by Master Bond. Outgassing is the release of volatile substances from a cured adhesive over time. These released materials, which may include residual solvents, unreacted monomers, or other chemical species, can deposit on nearby surfaces, causing contamination that interferes with sensitive components. What Is Outgassing and How Is It Measured? The industry standard for measuring outgassing is ASTM E595, developed by NASA. This test exposes a cured sample to 125 ยฐC at high vacuum (10โปโต to 10โปโถ torr) for 24 hours, measuring Total Mass Loss (TML) and Collected Volatile Condensable Materials (CVCM). To meet NASA low outgassing requirements, materials must exhibit less than 1 percent TML and less than 0.1 percent CVCM. Optical assemblies need contamination-free bonding and prevention of fogging the optics to maintain clarity. High-vacuum scientific equipment, semiconductor manufacturing tools, and aerospace electronics also demand low outgassing materials. Key Applications Low outgassing adhesives are essential wherever contamination could compromise performance and this is particularly relevant for space and satellite systems. Optical assemblies, including cameras, telescopes, and laser systems, need contamination-free bonding and prevention of fogging the optics to maintain clarity. High-vacuum scientific equipment, semiconductor manufacturing tools, and aerospace electronics also demand low outgassing materials. Even terrestrial optical devices benefit from reduced outgassing to ensure long-term reliability. EP30-2 is a versatile system can be used in a variety of applications in aerospace, electronic, optical and specialty OEM industries, especially when optical clarity and low outgassing are important criteria.Master Bond Ensuring Low Outgassing Performance Through Proper Handling Achieving specified outgassing performance requires attention to storage, mixing, and curing. For two-part systems, use the correct mix ratio and mix thoroughly to ensure complete reaction. Follow recommended cure schedules โ adding heat, even at modest temperatures of 150-200 ยฐF, significantly improves cross-linking and reduces outgassing. For UV-curable adhesives, ensure complete cure by using the correct lamp wavelength (typically 365 nm), adequate intensity, and proper exposure time with no shadowed areas. Troubleshooting Outgassing Issues If contamination appears on optical surfaces or outgassing test results are higher than expected, an incomplete cure might be one of the root causes. The first step is to verify that the adhesive has fully hardened to its specified Shore hardness. The next step is to consider adding or extending heat cure to improve cross-linking. Master Bond Product Recommendations Master Bond offers a range of adhesives meeting NASA low outgassing requirements. EP30-2 and EP21TCHT-1 are some examples of two-part epoxy systems that have been successfully deployed in demanding vacuum applications, including ultra-high vacuum environments. For applications requiring UV cure, Master Bond provides specialty UV formulations such as UV16 meeting ASTM E595, as well as dual-cure systems (UV plus heat) such as UV22DC80-10F for assemblies where shadows prevent complete UV exposure. These dual-cure products initiate with UV light and complete curing with heat as low as 180 ยฐF (80 ยฐC).
Veterans service officer Terrance O'Keefe put out a call from Massachusetts for a World War II veteran who needed a proper hero's send-off. When he arrived at the funeral, a line was already out the church door.
โI havenโt bought or sold property since the National Association of Realtors ruling that decoupled buyerโs and sellerโs agent commissions.โ
Gov. Kathy Hochulโs proposed pied-ร -terre tax on pricey second homes wonโt just soak the jet-setting super rich โ it also will nail hard-working families and retirees who live in the same buildings, critics charge.
Graham Platner, a Senate candidate in Maine, blamed private equity for destroying โour favorite baseball team.โ NESN, which is owned by the team, pulled his campaign ad, citing an intellectual property violation.
President Trump said Sunday that if his administration reaches a deal with Iran, it will be a โgood and proper one,โ as the two sides reportedly near an agreement to end hostilities. โIf I make a deal with Iran, it will be a good and proper one, not like the one made by Obama, which...
Guadalupe Galindo-Nevarez and her family moved from California to Texas for a fresh start, but high heat and property taxes pushed them to leave.
Last year, when I learned that Christopher Nolan was adapting Homerโs epic The Odyssey into a film, I got giddy. Itโs one of the greatest stories ever told, yet it has never been adapted properly. The 1954 Kirk Douglas film Ulysses was forgettable, and the 1997 TV miniseries starring Armand Assante was plastic. Nolanโs adaptation [โฆ]
Itโs time to prep your kit ahead of the summer season. These tools will do the job.
Property guardianship, in which residents live in otherwise vacant buildings, used to be considered edgy. But as the rental market tightens, more people are embracing the arrangement.
The merch rollout for the 2026 FIFA World Cup has started, with Hasbro unveiling two new Monopoly collaborations with the global soccer tournament. The first is a collaboration between Monopoly and popular trading card manufacturer Panini. The โMonopoly Panini Prizm: FIFA World Cup Gameโ combines the classic property-trading game with Panini Prizm soccer cards. Rather [โฆ]
Several shots were heard from the White House property on Saturday. Aaron Navarro reports from the location after Secret Service told him to get down immediately.
The five Italian divers who drowned in the Maldives were not wearing proper scuba equipment for the journey โ and were just 15 minutes from the surface when they died.
Alex Murdaugh faces a murder retrial after a court found clerk Becky Hill improperly influenced jurors. Here are the key names to know now.