Maysoon Welles

From a physics perspective, convex lenses (which are thicker in the middle than at the edges) have numerous applications because they converge light. Beyond the everyday items mentioned, they're crucial in scientific equipment like spectrometers, in medical devices like endoscopes, and in various sensors. The basic principle is that parallel light rays passing through a convex lens will converge at a point called the principal focus. This property makes them indispensable in optics and imaging technology across multiple fields.

Banks in India typically offer these main types of accounts:

• Savings Account: For personal savings with interest earnings and limited transactions
• Current Account: For businesses with no transaction limits but no interest
• Fixed Deposit Account: Lock funds for fixed periods at higher interest rates
• Recurring Deposit Account: Regular monthly deposits for fixed periods
• NRI Accounts: For Non-Resident Indians (NRE, NRO, FCNR accounts)
• Salary Account: Specifically for salary credits, often with zero balance requirements
• Senior Citizen Accounts: Higher interest rates and additional benefits for elders

Each serves different financial needs, so it's worth understanding which combination works best for your situation. Most people start with a savings account and add others as their financial life becomes more complex.

Micro teaching in B.Ed is a teacher training technique where you practice teaching in a simplified, scaled-down setting. Here's how it typically works:

• Short duration: You teach for just 5-10 minutes
• Small content: Focus on one specific teaching skill or concept
• Small audience: Usually just your peers and supervisor (5-10 people)
• Immediate feedback: You receive constructive criticism right after
• Re-teach: You get to implement the feedback and try again

It's like practicing teaching in a "laboratory" setting before facing real classrooms. The approach was developed at Stanford University in the 1960s and has become a standard part of teacher education worldwide.

As a DBA who uses DBeaver daily, here are my tips for effective backups:

• Schedule regular backups - DBeaver doesn't have built-in scheduling, but you can use your OS scheduler to trigger the backup
• Use custom format for large databases - it's faster and compresses better
• Export just schema sometimes for quick recovery setups
• Save your backup settings as a task to reuse later

One limitation: DBeaver backups require local file system access. For remote servers, you might need to use SSH tunneling or backup directly on the server. For production systems, I still prefer command-line pg_dump in cron jobs, but for development databases, DBeaver's backup feature is perfectly adequate and user-friendly.