May 11th: National & International Days, Celebrations and Observances

Want to make a difference on May 11? It's pretty straightforward. Take some photos of what's growing in local gardens - those images actually help track plant species in our area. Down the street, military families could use a friendly note or maybe an extra hand with everyday tasks.

• Garden apps are surprisingly useful these days. People track their plants, figure out what works, and swap tips about their hits and misses.
• Those cards you might send to hospital workers? They end up pinned to break room boards, sometimes for months.
• And if you know any good allergy-safe recipes that really work, sharing them helps more than you'd think.

Even a few basic herbs in a kitchen window count. Some basil or mint, whatever grows. Most folks are trying greener garden methods lately - turns out it's not that hard to help local wildlife while growing vegetables. And yeah, technology isn't perfect, but it sure beats losing touch with important people.

Each neighborhood gets a bit better when people pitch in. Nothing fancy required.

May 11th marks two triumphs of grit and skill.

The Blue Mountains blocked Sydney's western expansion until 1813.

• Three explorers - Blaxland, Lawson, and Wentworth - found a way through.
• Four workers cleared the steep paths ahead.
• Five dogs watched for danger while four horses carried vital supplies.
• Step by step, they covered 50 miles of rough mountain slopes.

This breakthrough changed everything. By 1815, a town called Bathurst grew on the far side. Local settlers wasted no time. The plains beyond became prime sheep country.

Fast forward to 2009. The crew of Space Shuttle Atlantis tackled Hubble's worn-out parts.

• Working in zero gravity, astronauts swapped out the old camera for the advanced Wide Field Camera 3.
• They fitted the Cosmic Origins Spectrograph between battery and gyroscope repairs.

The results proved worth every risky spacewalk. Hubble's sharper eyes now track subtle shifts in Earth's atmosphere. From mountain trails to orbital repairs, raw determination made the difference.

Back in the early days of flight, Theodore von Kármán tackled the complex physics of air movement at the Jet Propulsion Laboratory. His findings changed aircraft design forever - so much so that he became the first scientist awarded the National Medal of Science.

Richard Feynman. While his Nobel Prize came from creating diagrams showing particle interactions, he later put his sharp analytical mind to work solving a different puzzle: what exactly went wrong with the Challenger spacecraft.

Few women taught at UC Berkeley's environmental design department until Catherine Bauer Wurster broke that barrier in 1905. Her no-nonsense solutions for housing costs still influence how American cities plan affordable homes today.

Deep in the Andes, Gene Savoy (1927-2007) did what many thought impossible - he found Vilcabamba, where the last Inca rulers had hidden. The ancient water systems he spotted in those mountains still keep modern researchers busy.

The art world of 1904 wasn't ready for Salvador Dalí. His famous melting clocks in "The Persistence of Memory" turned reality sideways. Even Walt Disney took notice, leading to one of art history's oddest team-ups: the animation pioneer and the surrealist master working side by side.