1. Knee Joint Importance, Protection
Importance
- One of the most critical weight-bearing joints in the body, essential role in walking, running and jumping
- Shock absorption
- Stability
- Complex mechanism, include rotation and translation
Protection
- Maintain a healthy weight
- Strengthen surrounding muscles
- Flexibility, stretching regularly
- Proper footwear, provide good arch support
Workout for strengthen surrounding muscles
Wall sit, for front thigh muscles
Hamstring curl
Calf Raise
Hip Muscle
2. How Ransomware Attack Works
Process
- Infection vector, by email/bug/RDP/Download
- Lateral Movement, try to move laterally to infect as many machines as possible
- Encryption: this is done silently, so users don’t notice until too late
- Ransom Note: display a message informing and providing instruction
3. Wild Animal Nest
Birds
- Tree-nesting, robins or eagles
- Ground-nesting, quails or penguins
- Cavity-nesting, owls or woodpackers
Cats
- Big cats don’t construct homes
- Smaller cats might use natural formations
Dogs
- Usually den in caves, burrows or other sheltered spot
Insects: usually construct
3.1. Caves
Typically naturally occurring, animals might modify or enlarge it
3.2. Dens
Typically constructed, dig and create, not as extensive or large as caves
4. 水笔，圆珠笔
水笔：水笔一般是一种圆珠笔
圆珠笔：Ballpoint Pen
区别 水笔vs圆珠笔
- 水性；油性
- 墨水流畅；适应性强
- 价格较高；较低