Packet 8: Bonus 15
A principle named for this adjective is rejected by David Wiltshire’s timescape theory, which may provide a heterodox solution to the Hubble tension. For 10 points each:
[10m] What adjective names the principle that the universe is isotropic and homogeneous? Einstein called a constant named for this adjective and symbolized with a capital lambda his “greatest blunder.”
ANSWER: cosmological [accept cosmological principle; accept cosmological constant]
[10h] Assuming the cosmological principle, the Einstein Field Equations yield this metric. The spatial components of this metric are multiplied by the square of the scale factor a.
ANSWER: Friedmann–Lemaître–Robertson–Walker metric [or FLRW or FRW metric; or Friedmann–Robertson–Walker metric; or Friedmann–Lemaître metric; or FL metric]
[10e] This field’s slight anisotropy was observed by the WMAP and Planck satellites. This “relic radiation” pervades the universe and provides evidence for the Big Bang.
ANSWER: Cosmic Microwave Background Radiation [or CMBR]
<Editors, Other Science> | Packet H
| Editions | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|
| 2 | 128 | 11.88 | 75% | 43% | 1% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Durham A | Durham B | 10 | 0 | 10 | 20 | ME |
| Durham C | Edinburgh A | 0 | 0 | 10 | 10 | E |
| Edinburgh C | Sheffield B | 0 | 0 | 10 | 10 | E |
| Sheffield A | Durham D | 0 | 0 | 10 | 10 | E |
| York | Edinburgh B | 0 | 0 | 10 | 10 | E |
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| UK (North) | UK | Y | 5 | 12.00 | 100% | 20% | 0% |
| UK (South) | UK | Y | 8 | 13.75 | 88% | 50% | 0% |
| Northern California | US | Y | 4 | 15.00 | 100% | 50% | 0% |
| Southern California | US | Y | 6 | 16.67 | 100% | 67% | 0% |
| Eastern Canada (1) | US | Y | 5 | 12.00 | 80% | 40% | 0% |
| Eastern Canada (2) | US | Y | 9 | 11.11 | 67% | 44% | 0% |
| Florida | US | Y | 3 | 6.67 | 33% | 33% | 0% |
| Great Lakes | US | Y | 11 | 11.82 | 64% | 55% | 0% |
| Lower Mid-Atlantic | US | Y | 9 | 8.89 | 44% | 44% | 0% |
| Upper Mid-Atlantic | US | Y | 12 | 11.67 | 83% | 33% | 0% |
| Midwest | US | Y | 9 | 13.33 | 89% | 44% | 0% |
| North | US | Y | 3 | 13.33 | 100% | 33% | 0% |
| Northeast | US | Y | 12 | 12.50 | 67% | 50% | 8% |
| Pacific | US | Y | 8 | 8.75 | 63% | 25% | 0% |
| South Central | US | Y | 7 | 8.57 | 57% | 29% | 0% |
| Southeast | US | Y | 12 | 12.50 | 75% | 50% | 0% |
| Upstate NY | US | Y | 5 | 14.00 | 100% | 40% | 0% |