With Black Friday 2024 fast approaching on November 29, savvy shoppers are gearing up to take advantage of what promises to be an exciting sales event. To navigate the array of discounts and maximize savings, here’s a comprehensive guide on what to look for and how to approach your shopping this year.
Key Dates and Sale Duration
Black Friday falls the day after Thanksgiving in the US, and in 2024, it will be on November 29, concluding with Cyber Monday on December 2. Many retailers have already begun rolling out early deals, starting as early as November 1. Sales are likely to continue throughout the weekend, offering ample opportunity to snag great bargains before the holiday shopping season intensifies[4][6][9].
Research and Preparation
Before diving into shopping, preparation is crucial. Creating a detailed list of items you want and where to find them is essential. Research current prices and identify any specific retailers that carry these items[4]. This will help you recognize genuine discounts and avoid impulse buys. Experts recommend utilizing wish lists and shopping baskets on online platforms to keep track of desired items and monitor price drops effectively[3].
Additionally, familiarize yourself with price matching policies of your preferred retailers. Many stores are willing to match competitors' prices, which can relieve the pressure of having to check multiple sites for the best deal[4].
What to Buy
While Black Friday is known for spectacular deals on electronics, appliances, and fashion, the best deals are typically found on high-demand items that rarely go on sale. Look for top categories, including:
Electronics: This includes significant discounts on TVs, laptops, and gaming consoles like the PlayStation and Xbox[9]. Retailers like Amazon, Currys, and Best Buy will feature extensive sales on these products.
Home Appliances: Items such as air fryers, vacuums, and kitchen gadgets often see substantial markdowns. Notably, Ninja and Dyson products are expected to feature prominently in sales[8][9].
Fashion and Beauty: Department stores often provide heavy discounts on clothing and cosmetics during Black Friday. Brands like Zara and Boots usually run extensive sales, making this a great time to stock up on gifts[3][5].
Toys and Gifts: As Black Friday serves as the unofficial start of the Christmas shopping season, expect good deals on popular toys and gift items that are good for the holiday season[3].
Online Shopping Strategies
Given the growing trend of online shopping, navigating the digital aisles can be both a blessing and a challenge. Follow these strategies to optimize your online shopping experience:
Monitor Early Sales: Many retailers kick off their sales weeks in advance. Keep an eye on promotional emails or store websites starting in early November for early bird deals.
Be Social: Follow your favorite brands on social media platforms for exclusive deals and flash sales that may not be advertised elsewhere. Retailers often reward followers with special promotions[4].
Utilize Cashback Offers: Sign up for cashback websites or credit card rewards programs to potentially earn money back on your purchases. This can effectively lower the cost of what you buy[4][9].
Rate the Deals: Not every deal is as good as it seems. Research product reviews and price histories before making a commitment, ensuring you’re getting a genuine bargain. Websites like CamelCamelCamel can help track historical prices for Amazon products[6][8].
Avoiding Common Pitfalls
While Black Friday offers many opportunities, there are pitfalls to avoid:
Impulse Buying: Stick to your list to prevent buying items just because they are discounted. Ask yourself whether you truly need the item, as 'savings' on unneeded purchases can lead to regret later[3][8].
Fake Deals: Be cautious of discounts that seem too good to be true. Some retailers may inflate prices leading up to the sales to create the illusion of savings[5][9].
Limited Stocks: High-demand products can sell out quickly. If you see a deal on an item you were eyeing, it’s often best to act swiftly to avoid missing out[8][9].
Conclusion
Black Friday 2024 is set to be a significant shopping event, with countless deals up for grabs. By preparing in advance, being intentional about your purchases, and utilizing online strategies, you can navigate the sales effectively and make the most of this shopping frenzy. Remember, the best approach combines strategic planning with a calm shopping mindset to ensure a successful and enjoyable experience this holiday season.
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Curated by Joan
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To unclog a slow shower drain, you can start by manually removing visible hair or debris with gloves or tweezers. This is often the quickest solution, as hair is the most common cause of clogs[2]. If that doesn't work, try pouring a cup of baking soda followed by a cup of vinegar down the drain, then flush with hot water after a few minutes. This creates a fizzy reaction that can help break down buildup[3][4].
If these methods fail, it's time to open the drain cover. Unscrew or pry it off, then use a drain snake or a wire hanger to retrieve deeper clogs[1][5]. Rinse afterward with hot water to clear any remaining residue.
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Raining Fish: A Scientific Explanation from the 19th Century
The phenomenon of fish falling from the sky, often termed 'animal rain,' has puzzled observers for centuries. While it may seem to defy logic, the explanation does not involve fish forming in clouds. Instead, a compelling mechanical theory suggests that powerful atmospheric events can transport aquatic life from its natural habitat into the air, only for it to fall back to earth miles away. This report examines the explanation presented in the 1870 book 'Odd Showers: Or, An Explanation of the Rain of Insects, Fishes, and Lizards' by Carribber, which sought to demystify such occurrences through the lens of natural science[1][1]. The book, intended for young readers, was the culmination of nearly three decades of research into unusual atmospheric phenomena[1].
The Lifting Mechanism: Waterspouts and Whirlwinds
The central claim of the book is that showers of fish are not meteorological anomalies but are the result of powerful natural forces acting on bodies of water[1]. The primary agents responsible for this transportation are identified as waterspouts and whirlwinds (or hurricanes)[1]. These intense vortices possess enough power to suck up or lift a column of water from a stream, pond, or the sea, along with any fish or other small creatures residing within it[1].
Waterspout Lifting Fish from the Ocean
An artistic depiction of a powerful waterspout forming over the ocean, its vortex drawing water and a school of small fish upwards into the storm clouds.
Once the fish are elevated, the 'propelling force and velocity of the wind' are strong enough to carry them a considerable distance, potentially many miles from their original location[1]. The book posits that the fish are held aloft as long as the upward force of the whirlwind or waterspout is greater than the downward pull of gravity[1]. This explains how fish can appear to 'rain' down on areas far from any significant body of water.
Historical Examples of Fish Showers
To anchor this explanation in observable events, the book provides several historical accounts. Two notable examples illustrate the specific circumstances surrounding these phenomena.
The Shower of Whitings in Kent, 1666
In 1666, near Wrotham, Kent, a pasture field was reportedly covered with small fish following a 'great tempest of thunder and rain'[1]. The details of this event support the whirlwind theory:
- Location: The event occurred in a two-acre field far from the sea and with no nearby fish-ponds, during a time of water scarcity[1].
- Fish Type and Quantity: The fish were identified as young whitings, about the length of a small finger, and the total amount was estimated to be about a bushel[1].
- Localization: The shower was highly localized, with no fish found in any of the adjacent fields, which is consistent with the concentrated fallout from a dissipating whirlwind[1].
The Fish Fall at Mountain Ash, 1859
A more recent account from February 11, 1859, in Mountain Ash, Glamorganshire, describes a shower of small fish that fell during a period of severe weather[1]. This case provides further evidence for the atmospheric transport hypothesis:
- Weather Conditions: The event coincided with a 'heavy shower of rain and storm of wind,' including a 'very stiff gale from the South'[1].
- Condition of the Fish: Many fish, measuring up to four inches long, were found alive after the fall and were successfully kept in bottles of fresh water[1]. This suggests they were airborne for a relatively short period. Their 'instantaneous death' when placed in salt water indicates they were freshwater fish[1].
- Distribution: Similar to the Kent incident, the shower was confined to a specific area, covering the premises of a Mr. Nixon, with no fish observed in other parts of the neighborhood[1].
The Inevitable Descent: Gravity's Role
The book emphasizes that the suspension of fish in the atmosphere is temporary. The phenomenon concludes when the energy of the lifting force dissipates. According to the author, the fish 'must soon descend by the natural laws of gravitation when the forces that elevated them were spent'[1]. This occurs when the whirlwind weakens or moves over land, losing its source of power and moisture.
A Waterspout over the Ocean
A photograph of a real waterspout, a tornadic water vortex, forming over a body of water. This illustrates the type of natural phenomenon capable of lifting water and marine life into the atmosphere.
Another explanation offered is that as the column of water drawn up by the waterspout 'disseminates into vapor,' it is followed by a heavy shower of rain[1]. The objects carried within that column, such as fish, are no longer supported and fall along with the precipitation[1]. This process explains why the fall of fish is often, though not always, accompanied by a severe rainstorm, as was the case in both the Kent and Mountain Ash examples.
Explaining Animal Rain and Waterspouts
These videos provide visual explanations of the meteorological phenomena, such as waterspouts, that are believed to cause strange weather events like raining fish and frogs.
Conclusion
The explanation provided in 'Odd Showers' demystifies the rain of fish by attributing it to powerful, albeit uncommon, meteorological events rather than supernatural causes. By proposing that waterspouts and whirlwinds can lift fish from water and transport them over land, the book offers a rational framework grounded in physics. The lifting force of the vortex temporarily overcomes gravity, but once that force subsides, the transported fish inevitably fall back to earth. The historical accounts of localized fish falls during severe storms provide compelling anecdotal evidence for this theory, illustrating how seemingly impossible events can be understood through the 'well known and unerring laws of natural and physical science'[1].
References
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The FBI reported $5.6 billion in losses from crypto scams in 2023.
Investment scams are the most reported type of fraud.
In 2024, losses from crypto fraud reached an estimated $9.3 billion.
Pig butchering scams have led to over $75 billion stolen since 2020.
Scammers increasingly use AI-generated deepfakes for impersonation.
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Introduction
In recent years, the field of natural language processing (NLP) has made substantial strides, particularly through the development of large pretrained language models. One significant approach to boosting their performance is instruction finetuning, which involves training these models on datasets formatted as instructions. The research by Wei et al. (2021) and subsequent studies has shown that this methodology enhances the model’s ability to generalize across various tasks, including zero-shot scenarios.
The Importance of Instruction Finetuning
Instruction finetuning has been demonstrated to dramatically improve model performance and generalization to unseen tasks. By leveraging a collection of datasets phrased as instructions, models not only learn to respond correctly to specific prompts but also excel in broader tasks such as reasoning (Chowdhery et al., 2022). The researchers found that instruction finetuning affects model performance significantly when scaling both the number of tasks and the size of the models, underscoring its role in optimizing NLP capabilities.
Exploring the Scaling Factors
The study investigates how scaling impacts model performance through various configurations. It was identified that increasing the number of finetuning tasks generally leads to better outcomes, as seen when comparing different model sizes: 8B, 62B, and 540B parameters[1]. Notably, a key finding indicates that Flan-PaLM, which is finetuned on these instructions, shows substantial performance gains over models that haven't been fine-tuned, achieving state-of-the-art results on major benchmarks like MMLU.
Methodology
Datasets and Tasks
The finetuning process utilized a variety of datasets, totaling 1.8K tasks, covering domains like comprehension, reasoning, and coding. Among the datasets, diverse instructional templates were employed to ensure comprehensive training across tasks[1]. This also involved tailoring instruction sets for specific use cases to enhance learning efficiency.
Instruction Implementation
The researchers used instruction finetuning across multiple models, including various architectures such as encoder-decoder setups and others. The primary aim was to assess how effectively models could learn task-specific instructions while still maintaining general language processing abilities. A mix of multi-task learning and instruction-style finetuning was applied to champion efficiency[1].
Evaluation and Results
Results from the evaluation phase revealed remarkable improvements in model capability across two main frameworks: zero-shot and few-shot tasks. In zero-shot evaluation, Flan-PaLM 540B achieved a noteworthy performance of 75.2% on MMLU, outpacing canonical models significantly[1].
Performance Comparisons
Performance metrics illustrated that larger models with instruction finetuning could handle complex reasoning tasks much more efficiently than smaller counterparts or those without specific finetuning. For instance, Flan-PaLM 540B could manage intricate prompts with higher accuracy than models like T5, which were trained solely on standard datasets[1].
Addressing Bias and Safety
An essential aspect of this research delves into the bias and safety of language models. Previous works have highlighted that instruction finetuning may inadvertently propagate biases endemic in training datasets. Therefore, rigorous measures were taken to evaluate and mitigate potential toxic outputs and biases that could arise in various language contexts[1].
Conclusion
The advancements in instruction finetuning represent a crucial step in evolving NLP models to be more robust, scalable, and capable of handling complex tasks. As studies indicate, these methods not only enrich the capabilities of language models like Flan-PaLM but also set a crucial precedent for future developments in the field. Researchers are encouraged to maintain focus on bias evaluations to ensure that improvements in model performance do not compromise ethical standards and safety in AI usage.
This research emphasizes that the road ahead for NLP is intertwined with continuously refining methods for task-specific learning, raising benchmarks even further while addressing the imperative issue of responsible AI development.
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Cars make a different noise when reversing primarily due to the type of gears used in the transmission. The reverse gear typically employs spur gears, also known as straight-cut gears, which produce a more pronounced noise because they do not mesh as quietly as helical gears used for forward movement. Spur gears engage with a slamming action that creates a high-pitched whine, particularly increasing in pitch with speed[1][4].
In addition to the gear design, several mechanical issues can cause noise while reversing. Common reasons include worn-out brake pads, which may cause grinding sounds due to metal-on-metal contact[3]; issues with the reverse gear, such as worn or stripped teeth that affect engagement; and low transmission fluid, which can increase friction and noise[3][2]. Other potential sources of noise may include differential wear, exhaust system problems, and worn engine mounts[2][3]. Timely attention to these noises is vital to prevent further damage to the vehicle.
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Odd Showers: A Victorian Examination of Strange Precipitation
Published in London in 1870, the book Odd Showers: Or, An Explanation of the Rain of Insects, Fishes, and Lizards; Soot, Sand, and Ashes; Red Rain and Snow; Meteoric Stones; and other Bodies sought to provide rational, scientific explanations for seemingly miraculous or terrifying atmospheric phenomena[1]. Authored by Sir George Duncan Gibb under the pseudonym Carribber, the work was specifically written for a younger audience, aiming to demystify the world around them[1][1]. The author's own curiosity was piqued in 1841 after he personally witnessed a shower of small frogs near Montreal, an event that prompted a deeper investigation into such unusual occurrences[1]. This report summarizes the key findings and explanations presented in this Victorian-era text.
A Victorian Naturalist Observing a Strange Shower
An illustrative depiction of a 19th-century scientist, reminiscent of the book's author, observing and documenting an unusual fall of small frogs from the sky, with a journal and magnifying glass in hand. The style reflects the era's spirit of scientific inquiry.
Explaining the Rain of Living Creatures
A central focus of the book is to explain how living animals can seemingly fall from the sky. The primary mechanism proposed is the power of atmospheric disturbances like waterspouts or hurricanes. The author posits that these powerful weather events can suck up water, along with the creatures living in it, and transport them over significant distances before releasing them[1]. This single, powerful explanation is applied to various accounts of animal rain.
A Waterspout Forming Over the Ocean
A photograph of a powerful waterspout, a rotating column of water and spray, connecting a large body of water to a cumuliform cloud. This illustrates the natural force described in the book as capable of lifting fish and other small creatures into the atmosphere.
- Insect Showers: The book notes that showers of insects are a recorded phenomenon. An example is given of flies along the St. Lawrence River appearing in such vast quantities that their fall "resembles a heavy fall of snow"[1]. Locusts are cited as the most extreme example, with swarms so large they can obscure the sun across entire countries[1].
- Fish Showers: Historical accounts are used to support the theory. One such event occurred in Kent in 1666, where a shower of "young whitings" was recorded[1]. A more contemporary example from 1859 in Mountain Ash, Wales, is also documented, lending further credibility to the phenomenon[1].
- Amphibian Showers: The author's personal experience with falling frogs near Montreal serves as a foundational anecdote, confirming that such events, while strange, are observable realities that can be explained by natural transport[1].
From Soot to 'Blood Rain': Inorganic and Colored Showers
The book extends its scientific lens to showers of non-living matter and strangely colored precipitation, which were often sources of superstition and fear. The author systematically breaks down these events into their component parts, attributing them to geological or biological sources.
Volcanic eruptions are identified as a major source of inorganic showers. Soot and fine ashes from a volcano can be propelled high into the atmosphere, where strong air currents can carry the material for "hundreds of miles" before it falls back to earth, sometimes far from the eruption site[1].
The particularly alarming phenomenon of "showers of blood" is also addressed. The author reassures the reader that these are not supernatural events but are simply rain or snow colored by foreign substances. The red hue can be caused by several factors, including red-colored volcanic ash known as 'puzzolana', fine particles of red vegetable matter lifted by the wind, or the reddish-brown excretions of certain butterfly species[1][1]. By identifying these causes, the book concludes that "Showers of red rain and red snow are therefore genuine and undoubted facts, and when we know what it is that imparts to them their peculiar colour... there is nothing preternatural or marvellous about them"[1].
Celestial Visitors: Meteoric Stones
In its final section, the book turns its attention from terrestrial sources to extraterrestrial ones, discussing the nature of meteoric stones. Moving away from atmospheric transport, the author explains the accepted scientific doctrine of the time. Meteors are defined as "cosmical bodies floating in space" that are drawn into Earth's atmosphere and fall to the surface due to the fundamental "laws of general gravity"[1]. This explanation firmly places the phenomenon within the realm of astronomy and physics, completing the book's mission to replace superstition with scientific understanding.
Conclusion: Demystifying the Marvelous
Sir George Duncan Gibb's Odd Showers serves as a clear example of Victorian-era popular science, aiming to educate and reassure a general audience, particularly young people. The book's core insight is that even the most bizarre and seemingly inexplicable events often have logical, natural explanations. By attributing rains of animals to waterspouts, colored rain to dust and organic matter, and falling stones to cosmic gravity, the author systematically dismantles the "preternatural or marvellous"[1]. The work champions a worldview where observation and scientific reasoning can make sense of a world that might otherwise seem chaotic and mysterious.
References
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