Geostationary orbit simulation in GlowScript VPython: a practical tutorial that demonstrates orbital mechanics and physics-based visualization of satellites maintaining a fixed position relative to ...

Building an elastic collision simulator with springs in Python to model realistic physics interactions and dynamic object collisions. Learn how to implement spring forces, momentum conservation, and ...

Amazon is warning that a Russian-speaking hacker used multiple generative AI services as part of a campaign that breached more than 600 FortiGate firewalls across 55 countries in five weeks.

Thousands of residents have regained access to their water supply this evening after a "challenging" repair, a supplier has said. About 2,600 people living in BS4 and BS14 postcodes in south Bristol ...

Yes, you can now enter Delhi with an out-of-state BS4 petrol vehicle, as the GRAP Stage 4 restrictions have been lifted; however, a few conditions still apply. At the moment, GRAP Stages 1, 2 and 3 ...

The Centre for Air Quality Management has implemented GRAP Stage 3 in Delhi-NCR after Delhi’s AQI touched 354 on January 16, 2026, with air quality expected to worsen further due to unfavourable ...

The Commission for Air Quality Management (CAQM) has lifted the GRAP 4 restrictions in Delhi with immediate effect. The step to revoke the Graded Response Action Plan (GRAP) has been taken, ...

Only vehicles with BS4 compliant engines and above will be exempted from action if they are found running in Delhi, the Supreme Court said today, modifying its earlier order banning 10-year-old diesel ...

Starting December 18, 2025, Delhi has enforced GRAP Stage IV measures due to "Severe Plus" air quality . The new rules ban BS3 petrol and BS4 diesel vehicles from entering or moving within the city.

Delhi government has tightened the vehicular movement in the national capital region (NCR) in an attempt to curb the severe air pollution level in the region. Effective from December 18, Thursday, ...